Seiko Cal. 6643 - 339

This Quartz model from 1976 features a 40mm Stainless Steel case. Powered by the 6643 caliber with 29j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-4309cc47079e]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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