Seiko Cal. 5237 - 106

This Spring Drive model from 1977 features a 44mm Stainless Steel case. Powered by the 5237 caliber with 31j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-bd7ea7de02ed]

Also known as: Sumo, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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