Seiko Cal. 6391 - 642

The Seiko 6391-642 represents an important milestone in Seiko's 1995 lineup. Powered by the 6391 caliber with 31j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-1b1ad8cf1c67]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1995

Related Models

• Seiko 7013-944
• Seiko 5266-891
• Seiko 0719-164
• Seiko 4491-990
• Seiko 6292-145
• Seiko 7152-165
• Seiko 6244-771
• Seiko 0715-760
• Seiko 5696-377
• Seiko 6682-201
• Seiko 6179-880
• Seiko 7148-466