Seiko Cal. 6378 - 509

The 6378-509 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6378 caliber with 29j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-18241c6e2109]

Also known as: Bullhead, Silverwave

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1984

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