Seiko Cal. 6231 - 687

Seiko 6231-687

This Hand-Winding model from 1979 features a 34mm Titanium case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-33293e86017e]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
34mm
Case Thickness
15.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
150m
Dial Color
Green
Jewels
25j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1979

Related Models

seikata-wm-33293e86017e