Seiko Cal. 6690 - 633

Seiko 6690-633

This Automatic model from 1971 features a 41mm Hardlex-Coated Steel case. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-4ad11a7e622c]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
200m
Dial Color
Silver
Jewels
21j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1971

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seikata-wm-4ad11a7e622c