Seiko Cal. 7131 - 244

This Spring Drive model from 1985 features a 37mm Titanium case. Powered by the 7131 caliber with 30j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-e69a175a38b6]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1985

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