Seiko Cal. 6631 - 751

Seiko 6631-751

This Quartz model from 1982 features a 40mm Hardlex-Coated Steel case. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-5fe564806c24]

Also known as: World Timer, Navigator

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
29j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1982

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seikata-wm-5fe564806c24