Seiko Cal. 6399 - 581

The Seiko 6399-581 represents an important milestone in Seiko's 1982 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-932a7c7befe9]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1982

Related Models

• Seiko 4570-142
• Seiko 5625-704
• Seiko 5613-410
• Seiko 4491-333
• Seiko 7047-965
• Seiko 7145-857
• Seiko 0766-947
• Seiko 5287-276
• Seiko 5225-739
• Seiko 7089-440
• Seiko 7173-527
• Seiko 6227-576