Seiko Cal. 5680 - 440

This Spring Drive model from 1986 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-a5a1f1ac26ec]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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