Seiko Cal. 6637 - 270

This Quartz model from 1974 features a 34mm Gold-Plated case. Powered by the 6637 caliber with 20j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-723250e84aea]

Also known as: Sumo, Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1974

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