Seiko Cal. 7180 - 540

This Spring Drive model from 1984 features a 41mm Stainless Steel case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-217701bd4900]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1984

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