Seiko Cal. 6391 - 759

The Seiko 6391-759 represents an important milestone in Seiko's 1969 lineup. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-a3592aa315c4]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1969

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