Seiko Cal. 6634 - 734

This Spring Drive model from 1980 features a 36mm PVD Black case. Powered by the 6634 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-e98ae4f0a82d]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1980

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