Seiko Cal. 6635 - 668

This Automatic model from 1982 features a 36mm PVD Black case. Powered by the 6635 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-e76407cdbfd7]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1982

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