Seiko Cal. 4491 - 975

The Seiko 4491-975 represents an important milestone in Seiko's 1998 lineup. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-7a40edc07404]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1998

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