Seiko Cal. 4578 - 263

This Spring Drive model from 1970 features a 42mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-5bce83062355]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1970

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