Seiko Cal. 6397 - 741

Released in 1966, the Cal. 6397 with design code 741 was part of Seiko's domestic market collection. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-8519aa2eb063]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

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