Seiko Cal. 6390 - 556

The 6390-556 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6390 caliber with 25j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-85c378b44ee5]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1985

Related Models

• Seiko 6137-877
• Seiko 0765-817
• Seiko 5247-304
• Seiko 3890-395
• Seiko 0788-218
• Seiko 5624-554
• Seiko 6295-296
• Seiko 5251-508
• Seiko 6250-465
• Seiko 6688-554
• Seiko 0768-368
• Seiko 6234-204