Seiko Cal. 6640 - 121

Seiko 6640-121

This Hand-Winding model from 1965 features a 40mm PVD Black case. With its 22mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-65f40e686d7b]

Also known as: Samurai

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Navy
Jewels
22j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1965

Related Models

seikata-wm-65f40e686d7b