Seiko Cal. 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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