Seiko Cal. 4520 - 902

The 4520-902 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4520 caliber with 21j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-86ccb41b10a8]

Also known as: Samurai, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1981

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