Seiko Cal. 4457 - 803

The Seiko 4457-803 represents an important milestone in Seiko's 1978 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-00d5c8294d8e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

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