Seiko Cal. 4428 - 993

The Seiko 4428-993 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-8cb21bd4043f]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1967

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