Seiko Cal. 3871 - 412

Seiko 3871-412

The 3871-412 is a sought-after Kinetic piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f35a5d28be6c]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
40mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Navy
Jewels
29j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1974

Related Models

seikata-wm-f35a5d28be6c