Seiko Cal. 3861 - 641

The 3861-641 is a sought-after Solar piece from Seiko's golden era. Powered by the 3861 caliber with 20j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-2103dc091ff1]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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