Seiko Cal. 7156 - 218

This Hand-Winding model from 1991 features a 41mm Hardlex-Coated Steel case. Powered by the 7156 caliber with 18j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-13cec95b2ae3]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1991

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