Seiko Cal. 3831 - 775

Seiko 3831-775

This Automatic model from 1986 features a 45mm Stainless Steel case. Powered by the 3831 caliber with 19j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-c10aa4d99867]

Also known as: Tuna, Bullhead

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Cream
Jewels
19j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1986

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