Seiko Cal. 7157 - 725

This Spring Drive model from 1970 features a 46mm Stainless Steel case. Powered by the 7157 caliber with 25j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-ce477fe2d016]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1970

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