Seiko Cal. 5684 - 299

The Seiko 5684-299 represents an important milestone in Seiko's 1978 lineup. Powered by the 5684 caliber with 25j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-0ed620fbb134]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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