Seiko Cal. 6631 - 631

This Kinetic model from 1976 features a 43mm PVD Black case. Powered by the 6631 caliber with 31j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-ffd46d2cf62e]

Also known as: Pogue, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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