Seiko Cal. 7157 - 254

This Solar model from 1965 features a 42mm Stainless Steel case. Powered by the 7157 caliber with 31j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-c96249485363]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1965

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