Seiko Cal. 4557 - 733

This Spring Drive model from 1980 features a 45mm Titanium case. It features a Silver dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-2f4066c9c872]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1980

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