Seiko Cal. 6390 - 804

The Seiko 6390-804 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-27c0c15bc5db]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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