Timex M21 Movement
Official guide to service the Timex M21 movement.
The Timex M21 movement originated in 1954 with the launch of a range of Nurse’s watches, Timex’s first line of production watches.
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![Kelton Darwin Watch [1947]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/darwin-2147-kelton-gold-source-thumb-300x300.jpg)
Kelton Darwin Watch [1947]
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![Kelton Delphi Watch [1947]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/delphi-2147-kelton-gold-source-thumb-300x300.jpg)
Kelton Delphi Watch [1947]
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![Kelton Dayton Watch [1947]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/dayton-2147-kelton-chrome-source-thumb-300x300.jpg)
Kelton Dayton Watch [1947]
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![Kelton Devon Watch [1947]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/devon-2157-kelton-gold-source-thumb-300x300.jpg)
Kelton Devon Watch [1947]
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![Kelton Director Watch [1946]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/director-2146-kelton-gold-thumb-300x300.jpg)
Kelton Director Watch [1946]
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![Kelton Dexter Watch [1946]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/dexter-2146-kelton-chrome-thumb-300x300.jpg)
Kelton Dexter Watch [1946]
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![Kelton Dean Watch [1946]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/dean-2146-kelton-gold-thumb-300x300.jpg)
Kelton Dean Watch [1946]
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![Kelton Davidson Watch [1945]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/davidson-2145-kelton-thumb-300x300.jpg)
Kelton Davidson Watch [1945]
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![Kelton Dayton Watch [1945]](https://www.vintagetimexwatches.com/wp-content/uploads/2024/10/dayton-2145-kelton-thumb-300x300.jpg)
Kelton Dayton Watch [1945]
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![Timex Mercury Watch [1955]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/12/xxxx-2155-mercurynodate-head-scaled-300x300.jpg)
Timex Mercury Watch [1955]
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![Timex D-21 Watch DGL / DGM [1949-1950]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/d-2149-gold-head-300x300.jpg)
Timex D-21 Watch DGL / DGM [1949-1950]
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![Ben Hogan Timex Belt Watch [1954]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/xxxx-2154-beltwatch-benhogan-chrome-head-300x300.jpg)
Ben Hogan Timex Belt Watch [1954]
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![Timex Watch WGSL / WGSM [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/wgs-2154-marlinnodate-head-needsfix-300x300.jpg)
Timex Watch WGSL / WGSM [1950’s]
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![Timex Watch WCSL / WCSM [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/wcs-2154-marlinnodate-head-300x300.jpg)
Timex Watch WCSL / WCSM [1950’s]
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![Timex E-21 Watch [1949]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/eg-2249-mens-head-needsfixcrown-300x300.jpg)
Timex E-21 Watch [1949]
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![Timex BCL / BCM Watch [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/dc-2152-monroe-gb-head-scaled-300x300.jpg)
Timex BCL / BCM Watch [1950’s]
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![Timex BGSL / BGSM Watch [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/bgs-215x-mercurynodate-head-parts-300x300.jpg)
Timex BGSL / BGSM Watch [1950’s]
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![Timex BGL / BGM Watch [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/11/bgs-215x-mercurynodate-head-needssweep-300x300.jpg)
Timex BGL / BGM Watch [1950’s]
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![Timex Petite Ladies Watch 1010 2158 [1958]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/09/1010-2158-petitenodate-usa-head-300x300.jpg)
Timex Petite Ladies Watch 1010 2158 [1958]
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![21 Kelton Watch [1950’s]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/09/1xxx-xx5x-21j-kelton-head-300x300.jpg)
21 Kelton Watch [1950’s]
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![Timex Marlin Watch WCRSM / WCRSL [1954]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/08/xxxx-2254-marlinnodate-head-runsslow-300x297.jpg)
Timex Marlin Watch WCRSM / WCRSL [1954]
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![Timex Mercury Watch 1004 2159 [1959]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/07/1004-2159-mercurynodate-gb-head-needsfix-300x300.jpg)
Timex Mercury Watch 1004 2159 [1959]
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![Timex Watch BGSL / BGSM [1955]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/b-2155-mercurynodate-head-needscrystal-300x300.jpg)
Timex Watch BGSL / BGSM [1955]
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![U.S. Time Watch CGL / CGM [1950]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/c-2250-10krgp-ustime-head-300x300.jpg)
U.S. Time Watch CGL / CGM [1950]
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![Timex Watch DGL / DGM [1953]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/d-2153-monroe-head-meedsfix-300x300.jpg)
Timex Watch DGL / DGM [1953]
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![Saga Watch D-21 [1949]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/d-2249-monroe-usa-saga-head-needsfixdial-300x300.jpg)
Saga Watch D-21 [1949]
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![Timex Watch E-21 [1949]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/e-2149-monroe-head-300x300.jpg)
Timex Watch E-21 [1949]
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![Timex Cub Scout Watch FCM / FCL [1949]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/f-2149-sportster-scoutusa-head-300x300.jpg)
Timex Cub Scout Watch FCM / FCL [1949]
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![Timex Watch ACRSL / ACRSM [1950]](https://www.vintagetimexwatches.com/wp-content/uploads/2023/06/f-2150-sportster-head-needscrown-300x300.jpg)
Timex Watch ACRSL / ACRSM [1950]