Seiko Cal. 6390 - 923

The 6390-923 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6390 caliber with 34j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-ed133491d77a]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1983

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