Seiko Cal. 6640 - 129

Seiko 6640-129

This Hand-Winding model from 1970 features a 44mm Titanium case. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fe8e46e61d87]

Also known as: Turtle, Sumo

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
44mm
Case Thickness
9.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
Navy
Jewels
28j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1970

Related Models

seikata-wm-fe8e46e61d87