Seiko Cal. 6143 - 647

The Seiko 6143-647 represents an important milestone in Seiko's 1971 lineup. Powered by the 6143 caliber with 22j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-7690095d4359]

Also known as: Bullhead, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1971

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