Seiko Cal. 6631 - 110

Seiko 6631-110

This Hand-Winding model from 1979 features a 41mm Hardlex-Coated Steel case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-281da2f55df9]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
180m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1979

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seikata-wm-281da2f55df9