Seiko Cal. 7143 - 636

The Seiko 7143-636 represents an important milestone in Seiko's 1988 lineup. Powered by the 7143 caliber with 18j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-9fe40fa8a42b]

Also known as: Rally, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1988

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