Seiko Cal. 4520 - 719

The 4520-719 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4520 caliber with 21j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-eed69ce13e90]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

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