Caliber 2209 is a Soviet stunner

23 jewels gold plated and at the time was the slimmest watch movement.

Under Stalins order Russia started producing watches to cut dependency on Swiss movements and eventually soviet watches dominated the wristwatch market.

The 2209 can be found in many Russian watches as it was in production from 1963 to mid 1970s and as most will know, the soviet mode of production created abundance. Apparently there are people to this day with NOS parts bins assembling these to sell.

What's your favourite caliber, brand or even country of origin?