Seiko Cal. 7099 - 531

The Seiko 7099-531 represents an important milestone in Seiko's 1983 lineup. Powered by the 7099 caliber with 28j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-4e8ff02511a8]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1983

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