Seiko Cal. 4520 - 817

The 4520-817 is a sought-after Solar piece from Seiko's golden era. Powered by the 4520 caliber with 31j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-299194e05471]

Also known as: Turtle, Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1989

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