Seiko Cal. 4456 - 506

This Hand-Winding model from 1978 features a 42mm PVD Black case. Powered by the 4456 caliber with 31j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-717182fff3d7]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1978

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