Seiko Cal. 5678 - 423

Released in 1983, the Cal. 5678 with design code 423 was part of Seiko's domestic market collection. With its 18mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-463fcd991ba4]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1983

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