Seiko Cal. 3871 - 934

Seiko 3871-934

The 3871-934 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3871 caliber with 22j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-8577bf66ebea]

Also known as: Sumo, Helmet

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
110m
Dial Color
White
Jewels
22j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1987

Related Models

seikata-wm-8577bf66ebea