Seiko Cal. 3861 - 492

Seiko 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

Related Models

seikata-wm-f810370738eb