Seiko Cal. 4576 - 612

The 4576-612 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4576 caliber with 34j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-42a6fff7b2b6]

Also known as: World Timer, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1966

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