Seiko Cal. 6639 - 846

This Solar model from 1977 features a 41mm Hardlex-Coated Steel case. Powered by the 6639 caliber with 24j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-1b3f77b761e8]

Also known as: Bellmatic, Navigator

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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