Seiko Cal. 4517 - 447

This Automatic model from 1966 features a 42mm Hardlex-Coated Steel case. Powered by the 4517 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-f9e4c5c46be8]

Also known as: World Timer, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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