Seiko Cal. 5637 - 947

The Seiko 5637-947 represents an important milestone in Seiko's 1971 lineup. Powered by the 5637 caliber with 19j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-5083a36a1173]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1971

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