Seiko Cal. 5637 - 784

This Spring Drive model from 1971 features a 46mm PVD Black case. Powered by the 5637 caliber with 29j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-45581013a030]

Also known as: Pogue, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1971

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