Seiko Cal. 6390 - 918

The 6390-918 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6390 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-ff03af1650ff]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1985

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