Seiko Cal. 3847 - 930

The 3847-930 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3847 caliber with 24j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-a4cdd532ea3b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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