Seiko Cal. 6635 - 820

This Quartz model from 1966 features a 36mm PVD Black case. Powered by the 6635 caliber with 32j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-d30ff7fe3286]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1966

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