Seiko Cal. 5640 - 881

Seiko 5640-881

This Kinetic model from 1969 features a 38mm Hardlex-Coated Steel case. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-ccd27a7a994f]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
12.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
Black
Jewels
36j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1969

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