Seiko Cal. 4520 - 782

The 4520-782 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4520 caliber with 20j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-eab2a3b79bfd]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1983

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