Seiko Cal. 5668 - 555

This Spring Drive model from 1978 features a 41mm PVD Black case. With its 20mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-8ede3bc0bed9]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1978

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