Seiko Cal. 4428 - 647

This Solar model from 1965 features a 43mm Titanium case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-fe9c6ac507a1]

Also known as: Crown, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1965

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