Seiko Cal. 6631 - 106

Seiko 6631-106

This Spring Drive model from 1981 features a 45mm Gold-Plated case. With its 21mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-3c0a8c61aa61]

Also known as: Turtle, Rally

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
12.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
80m
Dial Color
Champagne
Jewels
26j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1981

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seikata-wm-3c0a8c61aa61