Seiko Cal. 5691 - 237

This Spring Drive model from 1970 features a 45mm Stainless Steel case. Powered by the 5691 caliber with 18j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-696535014453]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1970

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