Seiko Cal. 4577 - 394

The 4577-394 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4577 caliber with 19j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-2cab9861bfbf]

Also known as: World Timer, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1979

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