Valjoux 7753
High confidenceSeeded because several brands in this catalog use it under their own designations and because its register layout is frequently mistaken for a design choice. It is not: the dial layout of a 7753 watch is determined by the caliber, so a chronograph claimed to be 7753-based whose registers sit in the 7750 positions is carrying a different movement.
Specifications
- Movement manufacturer
- Valjoux
- Base caliber
- Valjoux 7750
- Frequency
- 28,800 vph (4 Hz)
- Jewels
- 27
- Power reserve
- 48 hours
- Winding
- automatic
- Complications
- Chronograph · Cam switching · Date
Architecture
A 7750 with a re-arranged dial-side chronograph module giving horizontally opposed registers at 3 and 9 with a small seconds at 6, in place of the 7750's tri-compax layout.
Related calibers
Derivative
Valjoux 7750Derivative
Hamilton H-31
References using this caliber
No catalog references are linked to this caliber yet.
Provenance of this record
Sources & Evidence
Secondary sourceCollector research
Ranfft Watch Movement Archive
Dr. Roland Ranfft (archived and maintained by volunteers)
- Accessed
- 2026-08-18
Cited for
This referenceHigh confidence
Last verified: Not yet reviewed