Seiko Cal. 6631 - 670

Seiko 6631-670

This Automatic model from 1997 features a 43mm Stainless Steel case. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-82b118f8e56e]

Also known as: Sumo, Sea Horse

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
170m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1997

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