Seiko Cal. 6639 - 240

This Solar model from 1989 features a 34mm Hardlex-Coated Steel case. Powered by the 6639 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-8e4669c910f7]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1989

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