Seiko Cal. 5637 - 629

The Seiko 5637-629 represents an important milestone in Seiko's 1965 lineup. Powered by the 5637 caliber with 17j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-6c894f34d135]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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