Seiko Cal. 4491 - 747

The Seiko 4491-747 represents an important milestone in Seiko's 1998 lineup. With its 20mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-ee2800713961]

Also known as: Helmet, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1998

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