Time graph question

[Brutus11]

Greetings folks. I am a relative newb here who has been following for the last year. Bought a noob Daytona from InTimeWatches a year ago and recently ordered a JF V10 AP diver and was sent a time graph. I searched and didn’t find anything specific as to what I’m looking for here. It read +7s/d 302 0.0 28800. I assume that means it runs 7sec fast a day? Is that the norm?


Sent from my iPhone using Tapatalk

 

[grillbrill]

https://rwg.cc/topic/143934-how-to-read-timegrapher-results/

 

[kavorca1]

Beat Number
Frequency, the vibration of a movement. The number of balance wheel swings per hour or how many times the watch ticks per hour. This is a preset, depends on the watch you order.
14,400 bph = 4 beats per second
18,000 bph = 5 beats per second
21,600 bph = 6 beats per second
28,800 bph = 8 beats per second
etc

Lift Angle
The angle the balance passes through while interacting with the pallet fork. Important to be set correctly in order to calculate the Amplitude. This preset is per caliber specs.
Most modern watches have a lift angle of 50 - 52 degrees. Generally lift angles range from 44 to 58 degrees. Some other settings are present, for instance Gen co-axials angle is 30 degrees.


Results

Rate
How fast / slow the movement runs (in seconds per day)

great : +/- 5 s/d
acceptable : +/- 12 s/d

If higher / lower?
It is possible to adjust this yourself or ask your dealer to nudge it a bit.


Amplitude
The measure of the amount of rotation in the swing of the balance wheel, in either direction.
Amplitude is higher when a watch is lying flat and usually falls when the watch is in a vertical position, due to increased friction. Amplitude can also fall as the watch winds down and the mainspring delivers less power.
Amplitude is a good indicator of the movements health and if is too high or too low, or that changes too much in different positions, can indicate a problem with the movement.

great : 270-310
acceptable : 250-270

If higher / lower?
Ask for a different watch or have your watch serviced


Beat Error
The amount of time by which the duration of swing differs from one side to the other in the oscillation of a balance wheel. Generally speaking to get a beat error of zero, the roller jewel in the pallet fork must be perfectly centered.

great : 0.0-0.5 ms
acceptable : 0.6-1 ms

If higher?
Ask for a different watch or have your watch serviced.


* Please note that if you are reading your QC from the dealer, you will generally receive only the results of the watch lying flat. All the above recommended measurements are from that position. The measurements in other positions may vary

 

[Brutus11]

Thank you very much for the detailed response


Sent from my iPhone using Tapatalk

 

[Brutus11]

Thank you very much for the detailed response


Sent from my iPhone using Tapatalk

 

[legend]

Greetings folks. I am a relative newb here who has been following for the last year. Bought a noob Daytona from InTimeWatches a year ago and recently ordered a JF V10 AP diver and was sent a time graph. I searched and didn’t find anything specific as to what I’m looking for here. It read +7s/d 302 0.0 28800. I assume that means it runs 7sec fast a day? Is that the norm?


Sent from my iPhone using Tapatalk

Other tips about the timegrapher pics:

1. A timegrapher shot is a snapshot of the way the watch is running in a specific position. This changes when watch is in other positions.

2. There are different qualities of timegraphers. I haven't seen a high quality timegrapher used by any TD, so don't take the timegrapher pic sent by the dealer as something cast in stone. Remember that timegraphers will not pick up how dirty a movement is, or how dry. It shows how well the movement is running in that moment, but will not tell you how long the movement can run good, or issues with certain parts of the movement. Just take it as a pic to show you that the movement is running, and the rest of the figures, understand what they are about and take it with a grain of salt. I can assure you 100% that the watch will not be running at +7 sec/day on average as it is worn and rotated on the wrist naturally in every angle and position. Position change = accuracy change.

3. Remember that the timegrapher pic is provided pre-shipment. What this means is that during the shipping process, the watch WILL get thrown and jounced around and the reading will change on a different timegrapher if you put it on one again.

4. There are issues which a timegrapher will not pick up, like slipping hands, a messed up keyless, sporadic movement stoppage or broken chrono parts. There is just no substitute to wearing a watch yourself and experiencing for yourself how well a movement runs.

 

[grillbrill]

What legend said. Once I was happy with the QC and timegrapher pictures but became upset having received the watch with a stuck micro-rotor. Fortunately my TD got the factory to repair my watch FOC but the process obviously took quite long.

 

[mech500]

What legend said. Once I was happy with the QC and timegrapher pictures but became upset having received the watch with a stuck micro-rotor. Fortunately my TD got the factory to repair my watch FOC but the process obviously took quite long.

Would have been faster, safer and more robust of a repair/service, if you sent it to a forum watchmaker but glad it sorted now


Sent from the RWI App

 

[Brutus11]

Would have been faster, safer and more robust of a repair/service, if you sent it to a forum watchmaker but glad it sorted now


Sent from the RWI App

Is there a list or post where you can find one? This would be great for service, I am in NC and trying on my own but hasn’t been great


Sent from my iPhone using Tapatalk