Seiko Cal. 4528 - 216

The Seiko 4528-216 represents an important milestone in Seiko's 1970 lineup. Powered by the 4528 caliber with 20j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-0283cf354d9e]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1970

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