Seiko Cal. 4557 - 642

The 4557-642 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-ed563b203c8c]

Also known as: UFO, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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