Seiko Cal. 5640 - 620

Seiko 5640-620

This Quartz model from 1971 features a 40mm Titanium case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1d7f94ee1d36]

Also known as: Samurai, Arnie

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
40mm
Case Thickness
10.7mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Navy
Jewels
22j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1971

Related Models

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