Seiko Cal. 6637 - 103

Seiko 6637-103

This Quartz model from 1976 features a 43mm Titanium case. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-90f26206db9b]

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
43mm
Case Thickness
15.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1976

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