Seiko Cal. 4557 - 781

The Seiko 4557-781 represents an important milestone in Seiko's 1969 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-c06a5562f974]

Also known as: Helmet, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1969

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