Seiko Cal. 6631 - 797

Seiko 6631-797

The 6631-797 is a sought-after Quartz piece from Seiko's golden era. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-4f4646eb9a0a]

Also known as: Bullhead, Flighty

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
15.8mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1974

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