Seiko Cal. 6639 - 570

This Solar model from 1991 features a 37mm Gold-Plated case. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-e6b25784b284]

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1991

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