Seiko Cal. 6390 - 786

Released in 1972, the Cal. 6390 with design code 786 was part of Seiko's domestic market collection. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-5b53ee622ddd]

Also known as: Rally, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1972

Related Models

• Seiko 3899-747
• Seiko 5258-401
• Seiko 6142-915
• Seiko 5663-446
• Seiko 0759-286
• Seiko 3844-470
• Seiko 5648-400
• Seiko 3897-418
• Seiko 6613-785
• Seiko 5213-550
• Seiko 6351-845
• Seiko 6242-870