Seiko Cal. 3847 - 921

The 3847-921 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3847 caliber with 21j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-3d5d7a6dafeb]

Also known as: Shogun, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1985

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