Seiko Cal. 7143 - 636

Seiko 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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