Seiko Cal. 4488 - 643

The Seiko 4488-643 represents an important milestone in Seiko's 1992 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-ed0eee96d660]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1992

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