Seiko Cal. 7018 - 691

Seiko 7018-691

The Seiko 7018-691 represents an important milestone in Seiko's 1990 lineup. Powered by the 7018 caliber with 18j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-cb79113b11d0]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Black
Jewels
18j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1990

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seikata-wm-cb79113b11d0