Seiko Cal. 6631 - 821

Seiko 6631-821

This Spring Drive model from 1995 features a 36mm Gold-Plated case. Powered by the 6631 caliber with 22j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-43095c403a49]

Also known as: Samurai

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
130m
Dial Color
Cream
Jewels
22j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1995

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seikata-wm-43095c403a49