Seiko Cal. 6640 - 129

This Automatic model from 1973 features a 41mm Titanium case. Powered by the 6640 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-89c3d1fc6995]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1973

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