Seiko Cal. 4528 - 516

The 4528-516 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4528 caliber with 27j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-d8a600e3f297]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1970

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