Seiko Cal. 4510 - 943

This Spring Drive model from 1968 features a 39mm Stainless Steel case. Powered by the 4510 caliber with 21j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-7a21a5c549fc]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1968

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