Seiko Cal. 7140 - 521

Seiko 7140-521

This Spring Drive model from 1965 features a 34mm Gold-Plated case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ac2230a276e0]

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
12.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1965

Related Models

seikata-wm-ac2230a276e0