Seiko Cal. 4520 - 446

The Seiko 4520-446 represents an important milestone in Seiko's 1969 lineup. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-382e2ee0d609]

Also known as: Crown, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1969

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