Seiko Cal. 4520 - 762

This Hand-Winding model from 1968 features a 37mm Titanium case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3c29d3ba7dd2]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1968

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