It's complete guess work without seeing inside for movement no. and case ref.
If pushed I would say model no.166.020 with 562 movement. The movement CAL could be 562, 563 or 565 depending on year of manufacture.
If the date changes when you pull the crown out fully, two stages, it's either a 563 or 565. If the date doesn't change and only pulls out one stage it's a 562.
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