Seiko Cal. 6390 - 266

The 6390-266 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6390 caliber with 30j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-0556bea706ea]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1987

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