Seiko Cal. 6390 - 391

Released in 1970, the Cal. 6390 with design code 391 was part of Seiko's domestic market collection. With its 18mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-43feb3eb8245]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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