Seiko Cal. 6391 - 787

The 6391-787 is a sought-after Kinetic piece from Seiko's golden era. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-2e8f207965f9]

Also known as: Samurai, Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1968

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