Trematic Bidynator moonphase with a Felsa cal. 693, automatic movement, probably from the late 1950’s.
The case is seemingly unpolished with super crisp lugs and chamfers, with only minor hairlines and marks. By the looks of it, it has barely been worn.
The dial is also in a very nice condition with only a slight patina from age, and a few minor marks that are barely visible. The hands are also looking very nice with a matching patina.
The movement was fully serviced in the summer of 2020 and is now keeping good time with a good power reserve. All of the functions work the way they should. The month disc is changed manually with the 2 o’clock button and the other complications are automatically changed every day.
The watch comes on a soft goat skin strap that has not seen much use at all.
Notes:
The rotor can sometimes be heard touching the inner part of the case, this doesn’t affect the function and it is only touching slightly.
| Model | Triple Date Calendar Bidynator Moonphase |
| Reference number | 602 |
| Condition | Pre-owned |
| Year | 1950s |
| Box | No |
| Papers | No |
| Case size | 37 mm |
| Movement | Automatic |
| Case material | Steel |
| Bracelet material | Leather |
| Dial color | White |
| Clasp | Fold clasp |
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