Vintage NEW Large watch (Navy of the USSR /BM CCCP) in original box - Unwanted gift.
VMF diving watch 1977/No. 1797
Rare model with a stopwatch. The watch is truly waterproof.
The steel durable case provides water resistance of the watch when submerged up to 700 meters while staying at this depth up to 1 hour. At a shallower depth - up to 30 hours.
Protective anti-shock grille (the grille can, in principle, be removed and operated without it).
The accuracy of the course according to the passport is 1 minute per day. The clock mechanism is mounted on 15 jewels.
These watches were produced in two modifications with two hands - hour and minute and three hands - a second was added. I got a watch with three hands.
The duration of the stroke after a full cocking of the spring is more than 30 hours.
Watch weight - 260 grams.
Watch thickness - 24 mm.
Case dimensions - 75 x 80 mm.

Full set.
Water resistant 700 meters.
The numbers and divisions of the dial, as well as the hands are covered with a luminous mass of variable action.
The tightness of the watch is ensured by:
- from the glass side - by the presence of a special gasket between the glass and the body, the glass is pressed against the gasket by a rim having a threaded connection with the body;
- from the side of the crown - by the presence of a special gasket between the case and the cap of the crown, which also has a threaded connection with the case.

The watch case is non-separable, access to the watch mechanism from the outside, after removing the glass and dial.
To wind the watch, it is necessary to unscrew the cap of the crown and start the watch; the hands are also moved using the crown. To prevent loss of the crown cap, it is attached to the watch case by means of a special steel chain.
The rubberized strap is fastened to the watch case by means of steel screws, which are screwed in with a screwdriver (a screwdriver is included in the kit).

The watch is in excellent condition, never used, original black dial, everything works.