Seiko Cal. 6390 - 107

The 6390-107 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6390 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-ab415732ae0f]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1991

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