Seiko Cal. 4420 - 927

This Spring Drive model from 1990 features a 42mm Two-Tone case. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-4c540e19d4d1]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1990

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