Seiko Cal. 4557 - 425

The 4557-425 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4557 caliber with 27j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-bb45cc701559]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1975

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