Seiko Cal. 3861 - 256

Seiko 3861-256

The Seiko 3861-256 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4f95d02a68c0]

Also known as: Sumo, Helmet

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
40mm
Case Thickness
10.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Black
Jewels
24j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1983

Related Models

seikata-wm-4f95d02a68c0