Seiko Cal. 4520 - 160

The Seiko 4520-160 represents an important milestone in Seiko's 1980 lineup. Powered by the 4520 caliber with 25j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-032e79a4f492]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1980

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