Seiko Cal. 7099 - 510

The Seiko 7099-510 represents an important milestone in Seiko's 1980 lineup. Powered by the 7099 caliber with 21j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-ab3b8ce56ab5]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1980

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