Seiko Cal. 7157 - 189

This Spring Drive model from 1983 features a 36mm Two-Tone case. Powered by the 7157 caliber with 18j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-98524f731e3b]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1983

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