Seiko Cal. 6635 - 331

This Kinetic model from 1971 features a 40mm Gold-Plated case. Powered by the 6635 caliber with 27j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-3b682fb9ac4f]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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