Seiko Cal. 6390 - 659

The Seiko 6390-659 represents an important milestone in Seiko's 1977 lineup. Powered by the 6390 caliber with 18j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-74122504abeb]

Also known as: Rally, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1977

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