United States
                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                    FORM 11-K

(Mark one)

[X]  ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF
     1934

For the fiscal year ended December 31, 2005

                                       OR

[ ]  TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT
     OF 1934

For the transition period from _________ to _________

                         Commission file number 1-12981

                SOLIDSTATE CONTROLS, INC. HOURLY EMPLOYEES' (CWA)
                                 RETIREMENT PLAN
                            (Full title of the plan)

                                  AMETEK, INC.
                 37 NORTH VALLEY ROAD, BUILDING 4, P.O. BOX 1764
                         PAOLI, PENNSYLVANIA 19301-0801
           (Name of issuer of the securities held pursuant to the plan
               and the address of its principal executive office)



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                 Financial Statements and Supplemental Schedule
                     Years ended December 31, 2005 and 2004

                                    CONTENTS


                                                                           
Financial Statements (Unaudited):
   Statements of Assets Available for Benefits.............................    2
   Statements of Changes in Assets Available for Benefits..................    3
   Notes to Financial Statements...........................................    4

Supplemental Schedule:
   Schedule H, Line 4i - Schedule of Assets (Held at End of Year)..........   11

Signatures.................................................................   12



                                       1



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                   Statements of Assets Available for Benefits
                           December 31, 2005 and 2004
                                   (Unaudited)



                                           DECEMBER 31,
                                      ---------------------
                                         2005         2004
                                      ----------   --------
                                             
ASSETS:
Investments, at fair value            $1,074,855   $909,241
                                      ----------   --------
Receivables:
   Employer contributions                 77,904     70,478
   Participants contributions              6,135      6,034
                                      ----------   --------
      Total receivables                   84,039     76,512
                                      ----------   --------
      Assets available for benefits   $1,158,894   $985,753
                                      ==========   ========


                             See accompanying notes.


                                       2



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
             Statements of Changes in Assets Available for Benefits
                     Years ended December 31, 2005 and 2004
                                   (Unaudited)



                                                   YEARS ENDED DECEMBER 31,
                                                   ------------------------
                                                        2005        2004
                                                     ----------   --------
                                                            
ADDITIONS:
Contributions:
   Employer                                          $   79,048   $ 70,478
   Participants                                          63,285     63,793
                                                     ----------   --------
                                                        142,333    134,271
                                                     ----------   --------
Investment income:
   Net appreciation in fair value of investments         43,689     82,078
   Interest and dividend income                          31,617     19,771
                                                     ----------   --------
                                                         75,306    101,849
                                                     ----------   --------
Total additions                                         217,639    236,120
                                                     ----------   --------
DEDUCTIONS:
Benefits paid to participants                           (44,498)    (5,719)
                                                     ----------   --------
Total deductions                                        (44,498)    (5,719)
                                                     ----------   --------
Net increase                                            173,141    230,401
Assets available for benefits:
   Beginning of year                                    985,753    755,352
                                                     ----------   --------
   End of year                                       $1,158,894   $985,753
                                                     ==========   ========


                             See accompanying notes.


                                       3



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

1. DESCRIPTION OF PLAN

GENERAL

The following brief description of the Plan provides only summarized
information. Participants should refer to the Plan document for a more complete
description of the Plan's provisions.

The Plan is a tax-deferred 401(k) defined contribution savings plan which
provides eligible employees (whose employment is governed by the terms of a
collective bargaining agreement with the Communications Workers of America
(CWA)) of Solidstate Controls, Inc., an opportunity to invest a portion of their
compensation, as defined by the Plan, in one or a combination of investment
programs (see Note 3).

CONTRIBUTIONS

Each year, participants have an opportunity to invest up to 16% (maximum 6%
before tax and maximum 10% after tax) of their annual compensation, as defined
by the Plan, in multiples of one percent, except for certain highly compensated
participants who may be subject to certain regulatory limitations. Participants
may also contribute amounts representing rollovers from other qualified plans.
The Plan provides for Company contributions equal to 40% of the amount
contributed by each participant, up to a maximum percentage ranging from 1% to
6% of the participants' compensation as determined by the terms of the
collective bargaining agreement. Retirement and matching company contributions
are paid to the Plan at anytime prior to the due date prescribed by law for
filing the Company's federal income tax return for that Plan year.

The Plan has a retirement feature for eligible participants, AMETEK makes
contributions to the Plan on behalf of such participants at a rate $0.35 for
each hour that an active participants is paid compensation. Participant
contributions under the retirement feature of the Plan are not permitted.
Investment programs and transfer and exchange privileges available under the
retirement feature of the Plan are the same as the savings feature under the
Plan.

Forfeited Company contributions, which are insignificant in amount, are used to
reduce current-year Company contributions.


                                       4



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

1. DESCRIPTION OF PLAN (CONTINUED)

PARTICIPANT ACCOUNTS

Each participant's account is credited with the participant's contributions and
allocations of (a) the Company's contributions and (b) Plan net earnings.
Allocations are based on participant earnings and/or account balances, as
defined. The benefit to which a participant is entitled is the balance in the
participant's vested account.

VESTING

Participants are fully vested at all times in their contributions to the Plan.
Company contributions under the savings provisions of the Plan and under the
retirement feature of the Plan become fully vested after five years of service.

PARTICIPANT LOANS

Participants may borrow a minimum of $1,000 or up to a maximum equal to the
lesser of $50,000 or 50% of their account balance. Participants may have up to
two loans outstanding at any time, the sum of which may not exceed the maximum
allowable under the Plan. Repayment terms of the loans are generally limited to
no longer than 60 months from inception or for a reasonable period of time in
excess of 60 months for the purchase of a principal residence, as fixed by the
Plan's Administrative Committee. The loans are secured by the balance in the
participant's account, and bear interest at rates established by the Plan's
administrative committee, which approximate rates charged by commercial lending
institutions for comparable loans. Interest rates on loans outstanding at
December 31, 2005 ranged between 5% and 7.75%. Principal and interest is paid
ratably through payroll deductions. Participant loans outstanding at December
31, 2005 and 2004, respectively, totaled $117,915 and $108,560 are included in
investments in the accompanying statements of assets available for benefits.


                                       5



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

1. DESCRIPTION OF PLAN (CONTINUED)

PAYMENT OF BENEFITS

On termination of service, death, disability or retirement, a participant may
receive a lump-sum amount equal to his or her vested account, elect to receive
payment in installments for life, subject to certain restrictions based on life
expectancy or direct rollover to an eligible retirement plan. When a participant
attains age 59 1/2 while still an employee, he or she can elect to withdraw a
specified portion of his or her vested account balance without incurring an
income tax penalty. Also, in certain cases of financial hardship, a participant
may elect to withdraw up to a specified portion of his or her vested account
balance, regardless of age.

PLAN TERMINATION

The Plan is subject to the provisions of the Employee Retirement Income Security
Act of 1974 ("ERISA").

While the Company has not expressed any intent to terminate the Plan, it is free
to do so at any time subject to the provisions of ERISA, and applicable labor
agreements. In the event of Plan termination, each participant will receive the
value of his or her separate vested account.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF FINANCIAL STATEMENTS AND PRESENTATION FORMAT

The accompanying financial statements are unaudited because the number of
participants in the Plan are fewer than the number of participants which would
require audited financial statements under ERISA. The accompanying financial
statements have been prepared on the accrual basis of accounting, in accordance
with U.S. generally accepted accounting principles. The accompanying financial
statements have been prepared in accordance with Statement of Position 99-3,
"Accounting for and Reporting of Certain Defined Contribution Benefit Plan
Investments and Other Disclosure Matters."


                                       6



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

USE OF ESTIMATES

The preparation of financial statements in conformity with U.S. generally
accepted accounting principles requires management to make estimates and
assumptions that affect amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates and
assumptions.

RISKS AND UNCERTAINTIES

The Plan invests in various investment securities. Investment securities are
exposed to various risks such as interest rate, market and credit risks. Due to
the level of risk associated with certain investment securities, it is at least
reasonably possible that changes in the values of investment securities will
occur in the near term and that such changes could materially affect
participants' account balances and the amounts reported in the statements of net
assets available for benefits.

INVESTMENT VALUATION AND INCOME RECOGNITION

Investments in shares of registered investment companies are valued at quoted
market prices, which represent the net asset values of shares held by the Plan
at year-end. The fair value of the participation units in the common/collective
trust is based on quoted redemption values on the last business day of the plan
year. Money market and short-term investments are carried at the fair value
established by the issuer and/or the trustee. The participant loans are valued
at their outstanding book values, which approximates fair value.

Purchases and sales of investments are reflected on trade dates. Realized gains
and losses on sales of investments are based on the average cost of such
investments. Interest income is recorded on the accrual basis. Dividend income
is recorded on the ex-dividend date. Income from other investments is recorded
as earned.

The net appreciation of investments represents the sum of the change in the
difference between year-end market value and cost of investments, and the
difference between the proceeds received and the cost of investments sold during
the year.


                                       7



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

3. INVESTMENT PROGRAMS

At December 31, 2005 and 2004, the Vanguard Fiduciary Trust Company was the
Trustee and a party-in-interest of the Plan.

A participant may direct contributions (up to certain specified limits) in any
of the following investment options.

     -    AMETEK Stock Fund

     -    Vanguard Retirement Savings Master Trust

     -    Registered investment companies:

          -    Vanguard Total Bond Market Index Fund

          -    Vanguard LifeStrategy Funds

          -    Vanguard Wellington Fund

          -    Vanguard Windsor II Fund

          -    Vanguard PRIMECAP Fund

          -    Vanguard Small-Cap Index Fund

          -    Vanguard 500 Index Fund

          -    Evergreen Small Cap Fund

          -    Julius Baer International Equity Fund

          -    BlackRock Small Cap Fund

Participants may change their investment options or transfer existing account
balances to other investment options daily.


                                       8



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

3. INVESTMENT PROGRAMS (CONTINUED)

The fair value of individual investments that represent 5% or more of the Plan's
assets at year-end are as follows:



                                                    DECEMBER 31,
                                                -------------------
                                                  2005       2004
                                                --------   --------
                                                     
Vanguard Retirement Savings Master Trust        $208,421   $100,161
AMETEK Stock Fund                                203,779    164,919
Vanguard Total Bond Market Index Fund            128,293     99,233
Loan Fund                                        117,915    108,560
Vanguard 500 Index Fund                           97,414     69,564
Vanguard Wellington Fund                          66,600     55,521
Vanguard LifeStrategy Growth Fund *               59,898         --
Vanguard LifeStrategy Moderate Growth Fund **         --     58,208
Vanguard Prime Money Market Fund ***                  --     94,758


*    At December 2004, this investment represented less that 5% of the fair
     value of the Plan's assets.

**   At December 2005, this investment represented less than 5% of the fair
     value of the Plan's assets.

***  Effective March 31, 2005, all balances in this fund were rolled into the
     Vanguard Retirement Savings Master Trust.

During 2005 and 2004 the Plan's investments (including gains and losses on
investments bought, sold, as well as held during the year) appreciated in value
as follows:



                                     DECEMBER 31,
                                  -----------------
                                    2005      2004
                                  -------   -------
                                      
Common stock                      $32,300   $54,270
Registered investment companies    11,389    27,808
                                  -------   -------
                                  $43,689   $82,078
                                  =======   =======



                                       9



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                          Notes to Financial Statements
                                December 31, 2005
                                   (Unaudited)

4. INCOME TAX STATUS

The Plan has received a determination letter from the Internal Revenue Service
dated November 1, 2002, stating that the Plan is qualified under Section 401(a)
of the Internal Revenue Code (the "Code") and, therefore, the related trust is
exempt from taxation. Subsequent to this issuance of the determination letter,
the Plan was amended and restated. Once qualified, the Plan is required to
operate in conformity with the Code to maintain its qualification. The plan
administrator believes the Plan is being operated in compliance with the
applicable requirements of the Code and, therefore, believes that the Plan, as
amended and restated, continues to be qualified and the related trust is tax
exempt.

5. ADMINISTRATIVE EXPENSES

The expenses of administering the Plan are payable from the trust funds, unless
the Company elects to pay such expenses. At present, the Company elected to pay
such expenses directly.


                                       10



                            Solidstate Controls, Inc.
                     Hourly Employees' (CWA) Retirement Plan
                         Form 5500, Schedule H, Line 4i
                    Schedule of Assets (Held at End of Year)
                                December 31, 2005
                                   (Unaudited)



                                                       Description of investment, including
                                                         maturity date, rate of interest,       Current
Identity of issue, borrower, lessor or similar party    collateral, par, or maturity value       Value
----------------------------------------------------   ------------------------------------   ----------
                                                                                        
AMETEK Stock Fund*                                     Common Stock Fund                      $  203,779
Vanguard Retirement Savings Master Trust *             Common/Collective Trust                   208,421
Vanguard Total Bond Market Index Fund*                 Registered Investment Company             128,293
Vanguard LifeStrategy Conservative Growth Fund*        Registered Investment Company              14,556
Vanguard LifeStrategy Growth Fund*                     Registered Investment Company              59,898
Vanguard LifeStrategy Moderate Growth Fund*            Registered Investment Company              49,258
Vanguard Wellington Fund*                              Registered Investment Company              66,600
Vanguard Windsor II Fund*                              Registered Investment Company              30,009
Vanguard PRIMECAP Fund*                                Registered Investment Company              37,879
Vanguard Small-Cap Index Fund*                         Registered Investment Company              13,826
Vanguard 500 Index Fund*                               Registered Investment Company              97,414
Evergreen Small Cap Value Fund                         Registered Investment Company              10,487
Julius Baer International Equity Fund                  Registered Investment Company              26,946
BlackRock Small Cap Fund                               Registered Investment Company               9,574
Loan Fund*                                             Interest rates ranging from
                                                       5.0% to 7.75%                             117,915
                                                                                              ----------
                                                                                              $1,074,855
                                                                                              ==========


----------
*    Indicates party-in-interest to the Plan


                                       11



                                   SIGNATURES

THE PLAN. Pursuant to the requirements of the Securities Exchange Act of 1934,
the Members of the Administrative Committee have duly caused this annual report
to be signed on its behalf by the undersigned hereunto duly authorized.

                                               Solidstate Controls, Inc.
                                        Hourly Employees'(CWA) Retirement Plan
                                                    (Name of Plan)


Dated: June 16, 2006                    By: /s/ John J. Molinelli
                                            ------------------------------------
                                            John J. Molinelli, Member,
                                            Administrative Committee


                                       12