Seiko Cal. 3861 - 492

The 3861-492 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3861 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-f810370738eb]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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