Seiko Cal. 3820 - 847

This Spring Drive model from 1984 features a 39mm Stainless Steel case. Powered by the 3820 caliber with 30j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-2e717fc058ba]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1984

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