Seiko Cal. 6640 - 702

Seiko 6640-702

This Solar model from 1972 features a 46mm Gold-Plated case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-8418d26737f7]

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.1mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1972

Related Models

seikata-wm-8418d26737f7