Seiko Cal. 4570 - 230

The 4570-230 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4570 caliber with 26j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-44dc940aebc4]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

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