Seiko Cal. 6643 - 439

Seiko 6643-439

This Solar model from 1970 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3d3e94925086]

Also known as: Sea Horse

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
14.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
24j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1970

Related Models

seikata-wm-3d3e94925086