Seiko Cal. 6691 - 951

Seiko 6691-951

This Quartz model from 1974 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-c53d8d3decd8]

Also known as: Sumo, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
100m
Dial Color
White
Jewels
33j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1974

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