Seiko Cal. 6390 - 439

Released in 1990, the Cal. 6390 with design code 439 was part of Seiko's domestic market collection. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-6a3ccd2715dc]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1990

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