Correctly winding your watch from the Miura collection

You're the proud owner of our Lamborghini-inspired watch and you're wondering how to reassemble it. Here's our advice.


First of all, thank you and congratulations on your purchase of an AJ-P400. These watches, whose dial is based on a Lamborghini Miura P400 S hood, are equipped with a hand-wound mechanical movement that you can discover here.

The Atelier Jalaper AJ-P400 watch from the Miura collection embodies elegance and performance, but to keep it running smoothly, it's essential to understand how to properly wind this timepiece. In this article, we'll explore the AJ-P400 winding process in detail, focusing on the crown, winder and other essential aspects of the mechanism.

How does a mechanical watch work?

One of the distinguishing features of the AJ-P400 is its mechanical movement, which uses traditional watchmaking technology. Winding the watch by hand is a crucial step in ensuring that the mechanism functions optimally. To do this, locate the crown, often located on the right-hand side of the case, and turn it clockwise. The term "crown" refers to the small circular piece used to set the time, date and wind the watch.

Manual winding mechanism

Manual winding consists in transmitting energy to the watch's mechanical movement by compressing an internal spring, also known as a barrel spring. This spring stores the energy needed to power the watch's movements, ensuring accurate timekeeping. It's important to note that manual winding must be carried out with care to avoid damage to the watch's delicate mechanism.

How do you reassemble your Lamborghini-inspired watch?

Checking the watch's current status

First of all, make sure your AJ-P400 watch is charged. If this is not the case, please refer to our guide.

The winder, sometimes called the winding stem, is the part of the crown that is pulled or pushed to perform various functions, including setting the time and winding.

When winding your AJ-P400 watch, make sure that the winder is fully depressed after winding to allow the mechanism to operate correctly.

Use the crown to wind the watch

The mechanical movements characteristic of the watches in the Lamborghini AJ-P400 collection may be sensitive to the position in which the watch is placed when not worn. In general, it is advisable to wind the watch manually before wearing it, even if it has been unused for a short period. This ensures optimal operation and accurate timekeeping.

When turning the crown to wind the watch, be aware of the resistance you may feel. Do not force the crown beyond this resistance, as this could damage the internal mechanism. Smooth and regular winding is the key to maintaining the precision and longevity of your AJ-P400 watch.

How often should you wind your watch from the Miura collection?

A frequently asked question is: "How often should I wind my Lamborghini-inspired watch?". The AJ-P400 has a reserve gauge lasting around 45 hours. Every two days at least, you'll need to recharge it by unscrewing the crown inwards, then winding it again. Once the gauge is full, the crown must be screwed back in by pressing on it while screwing it outwards.

What influence does the power reserve have?

The power reserve creates a real closeness between the watch and its wearer, with a rendezvous every 45 hours or so. By handling it, you come into contact with the mechanics.

When we conceived this watch and chose this manual winding with reserve gauge, our aim was first and foremost this concept of regular maintenance and connection with one's watch, but also aesthetics, as it is reminiscent of automobile dials with this fuel reserve whose design is freely inspired.

Tips for caring for your AJ-P400 watch made from a Lamborghini

Avoid overfitting

Your watch, like your car, is a reliable long-term object requiring relatively little attention and daily maintenance. It is, however, important to monitor the gauge regularly, but reassembly is only necessary once the gauge is almost exhausted, or after more than two days without use.

Unlike your car, you can recharge your watch whenever you want, without tools or infrastructure.

Cleaning your watch

Continuing the theme of maintenance, your watch, as a daily companion, will need to be cleaned.

You can find out more in our article dedicated to cleaning your watch.


In conclusion, winding your Atelier Jalaper AJ-P400 watch from the Lamborghini Miura collection is an important step in ensuring its smooth operation and maintaining the precision of the mechanical movement. The crown, winder and internal spring are key elements to consider during the winding process. Follow the advice specific to your model for optimal use of this emblematic part of Atelier Jalaper's Miura collection.

However, it's always a good idea to know the manual winding process in case you need to do it manually on a watch model requiring this maintenance.