Seiko Cal. 3899 - 492

This Spring Drive model from 1975 features a 44mm Gold-Plated case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-98b095ccb94e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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