Seiko Cal. 6639 - 108

This Spring Drive model from 1977 features a 35mm PVD Black case. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-aea044900508]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1977

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