Seiko Cal. 6639 - 244

This Spring Drive model from 1965 features a 42mm PVD Black case. Powered by the 6639 caliber with 33j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-0498a54a2f29]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

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