Seiko Cal. 3831 - 663

Seiko 3831-663

This Automatic model from 1968 features a 35mm Titanium case. Powered by the 3831 caliber with 25j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-ab6fe5e0ca6e]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
14.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
180m
Dial Color
Green
Jewels
25j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1968

Related Models

seikata-wm-ab6fe5e0ca6e