Seiko Cal. 5655 - 993

This Spring Drive model from 1975 features a 42mm Hardlex-Coated Steel case. With its 18mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-0addd513d50a]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1975

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