Seiko Cal. 3841 - 327

This Spring Drive model from 1979 features a 40mm Stainless Steel case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4b20238ba584]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1979

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