Seiko Cal. 6635 - 220

Seiko 6635-220

This Spring Drive model from 1969 features a 37mm Hardlex-Coated Steel case. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-cc7967e39912]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1969

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seikata-wm-cc7967e39912