Seiko Cal. 4520 - 169

This Spring Drive model from 1983 features a 36mm Stainless Steel case. Powered by the 4520 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-d643d737c8d5]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1983

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