Seiko Cal. 3830 - 917

This Spring Drive model from 1973 features a 34mm Hardlex-Coated Steel case. Powered by the 3830 caliber with 19j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-d4da1e466d29]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

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