Seiko Cal. 5680 - 643

The Seiko 5680-643 represents an important milestone in Seiko's 1965 lineup. Powered by the 5680 caliber with 29j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-aeaccbb0fb5e]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

Related Models

• Seiko 6358-303
• Seiko 5614-589
• Seiko 6181-949
• Seiko 6117-698
• Seiko 4431-406
• Seiko 6613-936
• Seiko 3815-815
• Seiko 4446-340
• Seiko 4594-356
• Seiko 6163-377
• Seiko 5292-363
• Seiko 6362-197