Seiko Cal. 7131 - 981

The 7131-981 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7131 caliber with 18j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-3bb3edcadec7]

Also known as: Bullhead, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1987

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