Seiko Cal. 6143 - 856

The Seiko 6143-856 represents an important milestone in Seiko's 1974 lineup. Powered by the 6143 caliber with 30j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-1200e3ac55bb]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1974

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