Seiko Cal. 6640 - 103

This Kinetic model from 1976 features a 36mm PVD Black case. Powered by the 6640 caliber with 28j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-6f0a88dce9b7]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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