Seiko Cal. 4443 - 730

The Seiko 4443-730 represents an important milestone in Seiko's 1996 lineup. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-dd5af494d0b4]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1996

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