Valjoux is a famous maker of watch movements, primarily chronographs. Originally known as Reymond Frères SA, the company was renamed Valjoux in 1929 and merged into ETA as part of the Swatch Group. However, the name, Valjoux, is still used for chronograph movements derived from the company's heritage.

• Valjoux 5 - 19 ligne 6-column chronograph
  • Includes Valjoux 9, 24, 62, 75, 551, 555
• Valjoux 330 - 19 ligne timer rattrapante
• Valjoux 55 - 17.67 ligne 8-column chronograph rattrapante
• Valjoux 22 - 14 ligne 9-column chronograph
  • Includes Valjoux 71
• Valjoux 23 - 13 ligne 9-column chronograph
  • Includes Valjoux 230, 23C, 232, 72, 720, 72C, 88, 236, 234, 235, 237, 725, 726, 729, 730
  • Also includes non-chronograph Valjoux 78, 90, 227, 228
• Valjoux 92 - 13 ligne 7-column chronograph with oscillating pinion
  • Includes Valjoux 77
• Valjoux 7730 - 14 ligne cam switching chronograph derived from Venus 188
  • Includes Valjoux 7731, 7733, 7734, 7736, 7737
• Valjoux 7750 - 13.25 ligne cam switching automatic chronograph
  • Includes 7751, 7753, 7754, 7758, 7770
  • Manual winding variants are Valjoux 7760, 7761, 7765, 7768

See also Valgranges for modern movements derived from Valjoux 7750 technology.