Seiko Cal. 4571 - 102

The 4571-102 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4571 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-b6e22c2dfee2]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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