Seiko Cal. 6181 - 811

This Spring Drive model from 1979 features a 43mm PVD Black case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-bd05e0f0e1e0]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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