Seiko Cal. 5640 - 810

Seiko 5640-810

This Kinetic model from 1971 features a 34mm Stainless Steel case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-40b641fe9944]

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
35j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1971

Related Models

seikata-wm-40b641fe9944