Seiko Cal. 6391 - 399

This Solar model from 1983 features a 34mm Titanium case. Powered by the 6391 caliber with 29j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-223bf412febd]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1983

Related Models

• Seiko 6621-156
• Seiko 6614-544
• Seiko 4443-708
• Seiko 6376-215
• Seiko 7078-651
• Seiko 5692-190
• Seiko 6227-710
• Seiko 3814-839
• Seiko 6148-711
• Seiko 0759-479
• Seiko 6146-466
• Seiko 7098-615