Seiko Cal. 3831 - 643

Seiko 3831-643

This Solar model from 1972 features a 43mm Titanium case. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-3f7ccda35736]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
43mm
Case Thickness
10.4mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1972

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