Paul Picot 4020/BC 2227 SUB 300 Professional Automatic Swiss Diving Watch
Movement: ETA 2892A2 Paul Picot Decorated, Blue Screws
For depths of 30 ATM or more than 300 meters.
Acier Saphir
Le Plongeur No. 1
Made in Switzerland
Refurbished by official Paul Picot Authorized Service Center in New York to like new condition.
Here is a video:
https://youtu.be/LGwDktloZGA