Is Valjoux 7750 Good?
The Valjoux 7750 is one of the most favoured chronograph movements in the timepiece industry. In fact, a lot of people claim that it is the best in its category. Modern Valjoux 7750 calibres also have 25 jewels and around 48 hours of power reserve.
Is ETA 7750 a COSC?
First introduced in 1974, the 7750 was Valjoux’ answer to the Zenith El Primero automatic movement. However, when properly tuned in, the 7750 meets COSC Chronometer standards, and is found in many quality watch brands, such as TAG Heuer.
Who makes the Valjoux 7750 movement?
Valjoux
Valjoux is responsible for the design and manufacture of the Valjoux 7750 movement (and variants), an extremely popular movement used in many mechanical chronograph watches. The Valjoux 7750 is different from most other chronograph movements, using the three-plane cam system rather than the column wheel.
How does Valjoux 7750 work?
The mechanical chronograph languished. The Valjoux 7750 is characterized by its rather stiff pusher action and by the familiar “wobble” of the winding rotor when it spins inside the case. While quartz was still on top, a renewed interest in mechanical movements led to a renaissance of automatic watches.
How accurate is ETA 7750?
The pictured example of the ETA/Valjoux caliber 7750 is one of the most recognizable and widely used automatic chronograph watch movement. It was based on the manual wind Valjoux caliber 7733, which itself was based on the Venus 188….ETA/Valjoux Caliber 7750.
| Brand | ETA / Valjoux |
|---|---|
| Lignes | 13 1/4”’ |
| Diameter | 30mm |
| Height | 7.9mm |
| Power Reserve | ~48 hours |
How do I adjust my Valjoux 7750?
After an extended period of non-use, the movement must be set in motion by winding the crown clockwise in its normal position. To change the Date setting, pull the Winding Crown (1) out into position -2- and turn clockwise (CW) or turn the Winding Crown counter-clockwise (CCW) to change the Day setting.
How do you regulate a Valjoux 7750?
The Valjoux 7750 uses a sturdy and convenient semi-fine rate regulation device. The index (right, 1) is moved to adjust the daily rate of the watch. Attached to an eccentric screw (2), this action causes the regulator ring (3) to rotate via an arm (4), adjusting the effective length of the balance spring.
What is an ETA 7750?
Valjoux was a movement manufacturer that designed and produced the caliber 7750. Valjoux is now part of ETA. What used to be called the Valjoux 7750 is now called the ETA 7750, unless of course it is an original 7750 that was made by Valjoux before becoming part of ETA.
What parts are needed for the Valjoux ETA 7750?
Balance bridge for regulator with pointer, for shock absorber, stud for Valjoux ETA 7750, 7751, 7753, 7754 chronograph movement. Find all of the parts and their numbers on the Valjoux Product Page for 7750
What is a 7750 watch?
The 7750 was partially designed on a computer – a first for the watch industry. Valjoux was a movement manufacturer that designed and produced the caliber 7750. Valjoux is now part of ETA.
Is the Valjoux 7750 a real caliber?
Valjoux was a movement manufacturer that designed and produced the caliber 7750. Valjoux is now part of ETA. What used to be called the Valjoux 7750 is now called the ETA 7750, unless of course it is an original 7750 that was made by Valjoux before becoming part of ETA. ETA officially calls it the “ETA 7750” on their tech sheets and drawings.