Seiko Cal. 4512 - 928

The 4512-928 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4512 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-1cb173cb9c00]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1991

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