Seiko Cal. 6643 - 691

This Solar model from 1968 features a 45mm PVD Black case. Powered by the 6643 caliber with 36j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-7fd32337931a]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1968

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