Seiko Cal. 6390 - 299

The Seiko 6390-299 represents an important milestone in Seiko's 1975 lineup. Powered by the 6390 caliber with 23j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-302b89151e0b]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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