Seiko Cal. 4566 - 691

Seiko 4566-691

This Hand-Winding model from 1968 features a 40mm Hardlex-Coated Steel case. With its 19mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-0a50f1a9488b]

Also known as: World Timer, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Champagne
Jewels
24j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1968

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