This Vostok "Commander" Airborne Force watch has a cal.2414A movement with 17 jewels, crown guard and screw-down clasp. With Vostok's special "rocking crown" system (impact protection). The watch is waterproof up to 200m according to the manufacturer, but I have not tested it. However, the seals are new and treated with silicone grease, but since it is an old vintage piece, it is worth taking care of this. It's a rare, collector's Soviet watch, with an original, superb 'battle-roasted' patina that gives the watch a real vintage vibe. This watch has a completely new leather strap, serviced c.a. one yaer ago and is good technical condition, it's running perfectly. It's in great demand among military, thematic or sovjet watch collectors.