Seiko Cal. 6391 - 387

Released in 1965, the Cal. 6391 with design code 387 was part of Seiko's domestic market collection. With its 19mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-466fa06fd809]

Also known as: UFO, Navigator

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1965

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