Seiko Cal. 4512 - 520

The Seiko 4512-520 represents an important milestone in Seiko's 1976 lineup. Powered by the 4512 caliber with 30j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-9961abba8dbd]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1976

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