Seiko Cal. 4557 - 373

The Seiko 4557-373 represents an important milestone in Seiko's 1966 lineup. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-0fdaf5e27103]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1966

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