Seiko Cal. 0731 - 185

Seiko 0731-185

This Automatic model from 1975 features a 36mm Gold-Plated case. Powered by the 0731 caliber with 18j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-1ebd09575164]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Cream
Jewels
18j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1975

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