Quai de l’Ile movement question

Afternoon or evening all,

Hope you're all looking at a great weekend. I have a question about the Quai de l’Ile Date model. I've read the most in-depth post by Alex but I'm still curious about the accuracy and robustness of the Caliber 2460QH.

I know it is an in-house caliber but it seems small for the watch (the movement is 26mm) and the power reserve is only 40 hours. By contrast, the Cal. 4400AS used in the smaller Traditionelle is 65 hours of power reserve. I know the 2460 is automatic but does anyone have this model who can comment on its accuracy?

Your thoughts are appreciated. I quite like the idea of customizing the watch, just concerned about how it actually tells time. Looking forward to you hearing from some folks, thanks.


Cal 2460QH
11/21/2015 - 03:16

Hi Chris,  Cal 2460QH is the version used in the QDI...but it is also a version of VC's in-house automatic movement, the Cal 2450/2460 family.

This family, in one variation or another,  is used in all the VC watches with an completely in-house, automatic, movement.  It has been proven to be reliable, accurate, and beautifully finished.

BR, Dan

Chris. this movement debuted in the 250th Anniversary 1755 Jubilee
11/22/2015 - 06:42

piece back in 2005. It was VC's first in-house automatic in a long-long time. I think VC's first in-house automatic ever. Any historians want to shed some light here?

The caliber 2450 /2460 is the base movements on which many of VC's mid-complications are based on. The Patrimony Retrogade, Traditionelle World Time, Harmony Dual Time, Traditionelle Day Date and Power Reserve, QDL Day Date and Power Reserve, QDL Retrograde Annual Calendar, and the - Metier D' Arts G4.

While I do not own a VC with this movement (as yet), I know this is an excellent automatic movement designed as the automatic-workhorce as VC moves forward in introducing more and more mid-complications / grand-complications. On the other hand, the manual-wind Caliber 4400 is designed as the workhorce for VC future.

Do no worry about the accuracy etc. It is a brilliant movement, and I absolutely love the Gold-Rotor on the non-QDL versions. QDL seems to have a different type of finish more befitting the personality of the QDI.

The real-question you ask is why the power reserve on the automatic is lower than the manual? I think this is true for many brands, and not just VC. Perhaps someone with better technical knowledge can answer this.


long power reserve in an automatic winding movement
11/22/2015 - 10:18

I guess the question I have is, "is there a need?"

If you are wearing the watch, hopefully your "normal" activity will keep it wound up enough so that you never need to manually wind it during the periof in which you use it.

Now if you put the watch down for a weekend, maybe you need a 48 hour PR?

"Normal" activity is also different person-to-person.  My wife's auto winding Omega never sustains enough power through the rotor, and manual winding it is still necessary.  I, on the other hand, have never had to wind an auto unless I put it down for two or more days.

This is why I like the idea of having a PR indicator on a watch with an automatic movement, because you never really know how much it is really wound.

BR, Dan