Seiko Cal. 4566 - 791

Seiko 4566-791

This Automatic model from 1968 features a 39mm Titanium case. Powered by the 4566 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-bc579b60fe58]

Also known as: Helmet, Navigator

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
39mm
Case Thickness
14.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
35j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1968

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