Seiko Cal. 7156 - 180

The Seiko 7156-180 represents an important milestone in Seiko's 1981 lineup. Powered by the 7156 caliber with 29j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-17748ddce975]

Also known as: Navigator, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1981

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