Seiko Cal. 5637 - 586

This Spring Drive model from 1981 features a 34mm PVD Black case. Powered by the 5637 caliber with 33j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-2e5a29e6c781]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1981

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