Seiko Cal. 4431 - 725

This Solar model from 1977 features a 40mm Titanium case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d817edc762aa]

Also known as: Sea Horse, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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