Seiko Cal. 3847 - 387

This Spring Drive model from 1986 features a 39mm Gold-Plated case. Powered by the 3847 caliber with 33j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-238d4b2ba6f8]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1986

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