Seiko Cal. 4439 - 978

This Solar model from 1972 features a 40mm Titanium case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4cb6af5a9cf1]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

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