Seiko Cal. 4422 - 728

This Spring Drive model from 1976 features a 39mm Titanium case. With its 20mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-6060cb6ce401]

Also known as: Silverwave, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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