Seiko Cal. 7136 - 158

This Spring Drive model from 1976 features a 38mm Stainless Steel case. Powered by the 7136 caliber with 22j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-d868a41acaa8]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1976

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