Seiko Cal. 3891 - 813

This Spring Drive model from 1989 features a 44mm Stainless Steel case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-8f71a12449b6]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1989

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