Seiko Cal. 6669 - 336

This Quartz model from 1977 features a 41mm Hardlex-Coated Steel case. Powered by the 6669 caliber with 31j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-81dcb9480d4e]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1977

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