Seiko Cal. 4512 - 203

The Seiko 4512-203 represents an important milestone in Seiko's 1971 lineup. Powered by the 4512 caliber with 19j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-9c3d837a5efd]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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