Seiko Cal. 4526 - 157

This Spring Drive model from 1970 features a 39mm Stainless Steel case. Powered by the 4526 caliber with 21j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-910bf8dba649]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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