Today’s Watch – Citizen SM Auto Dater, 17 Jewels

Here’s the second of Citizen’s two movements used in the SM models – this time with 17 jewels. The other has 21, but both use the same date only 2410 calibre. The day and date version of this, the SM 7, uses the 4600 movement with 23 jewels. They were all launched in 1965, and share the same unique date quick-set, namely it’s set when the crown is pulled out to set the time and then the hands moved backwards to advance the date. It’s odd at first, but actually works very well. The dial and hand set is the same as the 21 jewels version, with slender lumed hands and lume dots out side the hour markers. The bezel is plain on this one though – and maybe all the better for that, since it gives a smart and uncluttered overall appearance. These were reasonably priced watches but nonetheless seem to be of a decent quality – both are functioning and running well after nearly 55 years. This one is from February 1966:

Here’s the 21 jewel example:
https://sweep-hand.org/2020/04/05/todays-watch-citizen-sm-auto-dater-21-jewels/

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2 Responses to Today’s Watch – Citizen SM Auto Dater, 17 Jewels

  1. Eduardo Farha says:

    Nice stories! Thank you!

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