Today’s Watch – Citizen Jet Auto Dater, 21 Jewels

From June 1963, today’s piece is a Jet Auto Dater with Citizen’s rotary geared automatic movement inside. This is the 21 jewel variant, so the calibre is the 1120, the first version of the Jet with no ‘Easy Change’ date mechanism. The movement can be hand wound (only the ‘Rookie’ models have no hand winding), and the date is set by winding back and forth around midnight. A simple dial is typically marked with Citizen’s fine cursive printing incorporating the Jet logo. The watch is running very nicely and keeping good time:

More info on the Jet line is here:

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