Seiko Cal. 6631 - 259

Seiko 6631-259

This Automatic model from 1971 features a 44mm Stainless Steel case. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-3800006f5650]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Black
Jewels
32j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1971

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