Seiko Cal. 5636 - 674

The 5636-674 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5636 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-7d74a74d0ae1]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1979

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