Vostok Amphibia 420945 KGB Watch

Series: Amphibia
Model: 420959

Movement: Vostok 2416B (mechanical, automatic winding, overwind protection)
Jewels: 31 Ruby Jewels

Case Size: 39,6 х 46 х 15

Weight: 128 g
Case Material: Stainless Steel
Case Shape: Cushion
Case Back: Solid
Band Type: Bracelet
Band Material: Stainless Steel
Band Width: 18 mm
Shock-Resistant: Yes
Water Resistance: 200 m (20 ATM)
Functions: Sensitive watch with a central second hand
Features: Date
Dial Type: Analog 12-Hour
Luminescence: Hands, Indexes
Crystal: Acrylic 
Bezel: Rotating

Average daily rate: -20 +60 seconds per day

The duration of the stroke from the full winding of the spring is 31 hours