Seiko Cal. 7131 - 629

Seiko 7131-629

This Quartz model from 1968 features a 36mm Stainless Steel case. Powered by the 7131 caliber with 31j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-a28cf9d83350]

Also known as: Monster, Flighty

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
160m
Dial Color
Champagne
Jewels
31j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1968

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