Seiko Cal. 6390 - 900

The 6390-900 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6390 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-2a142bf84306]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1969

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