Calibre 01
A mechanical watch that truly ticks
Atelier runs a mechanical watch movement on your iPhone by its own mechanism. The mainspring's torque runs through the gear train to the escapement, and the balance beats 28,800 times an hour to move the hands.
Download on the App StoreFree, with in-app purchases — iPhone with iOS 18.0 or later
Movement
Into the movement
This movement runs on the same calculations as the app. Scroll to move from the whole movement, drawn in line, to the escapement in metal.
Philosophy
Moved by its mechanism alone
Nothing here is a prerecorded animation. The mainspring's torque sets the balance's amplitude, and the amplitude sets the rate. As the spring runs down the amplitude falls, until the balance comes to rest. The hands, the sound and the beat you feel in your hand all come from the state of one mechanism.
Assembly
A movement built chapter by chapter
On the first launch you watch it go together from the bare main plate until it starts to keep time. The remaining chapters (the motion works, the dial and hands, and the case) arrive as the balance beats.
Once it is built, trace it with a finger to take it apart and put it together again as often as you like, and learn the order in which every part goes into place.
Escapement
The escapement up close
The escape wheel drives the pallet fork and the fork impulses the balance. Zoom in down to a single breath of the hairspring.
Turn the crown to wind it and pull it out to set the hands, in the same order as on a real watch.
Complications
Complications fitted by hand
A module adds real mechanism to the movement. It goes on once the movement is assembled through its last chapter, and can be removed and refitted later.
- Automatic winding
- A rotor and reversing wheels: swing your iPhone to wind the mainspring
- Power reserve
- Differential gearing: the hand at 3 o'clock shows the mainspring's reserve
- Minute repeater
- Push and release the slide at 9 o'clock to chime the time on the hands
- Build Now
- The chapters still to come arrive at once (only while the movement is being built)
Every purchase is one-time. Buying any module also delivers the remaining chapters at once. Prices are shown in the App Store in your currency.
Privacy
A watch with no account
- No accountNothing to sign up for or sign in to.
- Kept on your deviceThe assembly progress, the Logbook and the settings stay on your iPhone.
- Works offlineThe watch and its assembly run offline. Only purchases and restoring need a connection, managed through RevenueCat.
FAQ
Questions
When is the movement finished?
On the first launch, the movement is assembled automatically up to the point where it starts to keep time (Chapter 5). The remaining chapters (the motion works, the dial and hands, and the case) arrive as the balance beats (about a day and a half of running), and sooner as you find the phenomena of the mechanism. Beats are counted only while the watch runs, so wind it with the crown before it stops. Buying Build Now, or any module, in the module list delivers the rest at once.
I bought a module but it isn't fitted
A module can go on only after the movement is assembled through its last chapter; until then its switch in the module list can't be turned on. If the movement is assembled and the module still shows as not bought, tap Restore Purchases at the bottom of the list. If you are signed in to the App Store with the Apple ID you bought it with, your purchases come back; turn on a module's switch to fit it.
What happens to my purchases on a new iPhone?
Every purchase is a one-time purchase (non-consumable). Install Atelier on the new iPhone with the same Apple ID and tap Restore Purchases in the module list. Restoring delivers the remaining chapters; once the movement is assembled, turn on the switches of the modules you want fitted.
The automatic winding rotor doesn't turn
Automatic winding turns the rotor with the iPhone's motion sensor. Hold the iPhone and swing it, or move your arm; it does not wind lying on a desk. You can also wind by hand by turning the crown.
The minute repeater makes no sound
Check the volume. The repeater strikes the time the hands show on request, so it sounds even in Silent mode. If you still hear nothing, check whether the sound is going to another output, such as Bluetooth earphones.
Where is my data stored?
The assembly progress, the Logbook and the settings are all stored on your device. Only to manage purchases, an anonymous user ID, the device identifier for vendors and the purchase history are sent to RevenueCat. See the Privacy Policy.
Does it work offline?
Yes. The watch and its assembly work offline. Purchasing and restoring purchases need an internet connection.
Which devices are supported?
iPhone with iOS 18.0 or later.
Atelier
Set it ticking in your hand
Download on the App StoreFree, with in-app purchases — iPhone with iOS 18.0 or later