Seiko Cal. 6641 - 331

Seiko 6641-331

This Hand-Winding model from 1978 features a 43mm Hardlex-Coated Steel case. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d9990fe94791]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
13.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
100m
Dial Color
Navy
Jewels
31j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1978

Related Models

seikata-wm-d9990fe94791