Seiko Cal. 6391 - 156

The Seiko 6391-156 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-76bb6d1b5c1f]

Also known as: Monster, UFO

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1969

Related Models

• Seiko 7055-128
• Seiko 4538-462
• Seiko 6193-861
• Seiko 6668-860
• Seiko 3860-400
• Seiko 5644-632
• Seiko 4456-831
• Seiko 3827-696
• Seiko 4548-202
• Seiko 6274-929
• Seiko 4452-131
• Seiko 4533-996