Seiko Cal. 6638 - 568

This Kinetic model from 1972 features a 40mm PVD Black case. Powered by the 6638 caliber with 21j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-acee320a632a]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1972

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