Seiko Cal. 4520 - 304

This Automatic model from 1968 features a 45mm Titanium case. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-3dcad98bcacc]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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