Seiko Cal. 4520 - 903

This Hand-Winding model from 1989 features a 34mm Titanium case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-9c1be6bff298]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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