Seiko Cal. 6390 - 863

The 6390-863 is a sought-after Solar piece from Seiko's golden era. Powered by the 6390 caliber with 35j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-b47d571f3387]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1966

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