Seiko Cal. 4578 - 693

Released in 1965, the Cal. 4578 with design code 693 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-b4cae6ba96c7]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1965

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