Seiko Cal. 6389 - 728

Released in 1974, the Cal. 6389 with design code 728 was part of Seiko's domestic market collection. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-0d3bb4cdb857]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1974

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