Seiko Cal. 6637 - 770

Seiko 6637-770

This Automatic model from 1967 features a 40mm Titanium case. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-1f57f8b3511a]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
14.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1967

Related Models

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