Seiko Cal. 6391 - 980

The 6391-980 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6391 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-dd9c0932c999]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1976

Related Models

• Seiko 0794-661
• Seiko 3876-169
• Seiko 6374-195
• Seiko 7062-457
• Seiko 6628-709
• Seiko 4546-716
• Seiko 4483-787
• Seiko 5623-928
• Seiko 5278-281
• Seiko 4427-488
• Seiko 3828-582
• Seiko 3891-127