Seiko Cal. 4564 - 431

The 4564-431 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4564 caliber with 24j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-c8bfabe5ba3e]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

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