TPD (Turns Per Day) refers to the number of rotations an automatic Watch Winder performs over a 24-hour period. Each calibre has its own winding requirements. The correct setting combines two parameters: the number of turns per day and the direction of rotation.
What is TPD and why is this setting important?
An automatic watch is wound by its oscillating weight, which rotates in response to wrist movements and transfers energy to the mainspring. When the watch is not worn, this source of energy disappears: the power reserve is gradually depleted, precision declines and the watch eventually stops. A Watch Winder for automatic watches takes over when the watch is not being worn by reproducing these natural movements according to a defined number of daily rotations: the TPD.
However, not all watches have the same requirements. The architecture of the oscillating weight, the power of the mainspring and the extent of the power reserve vary from one calibre to another; consequently, the number of turns required to maintain optimal mainspring tension also varies.
An appropriate TPD setting offers two key benefits. In terms of precision, it keeps the mechanism within its ideal operating range and saves you from having to reset the time, which can be particularly delicate with complication watches. In terms of longevity, keeping the movement running ensures an even distribution of lubricating oils throughout the mechanism, helping to prevent friction and premature wear.
Discover also:Why use an automatic Watch Winder
1,600 rotations per day: the SwissKubik standard
In its standard factory configuration, every SwissKubik automatic Watch Winder performs 1,600 rotations per day, evenly divided between the two directions: 800 clockwise and 800 counter-clockwise turns. This balanced bidirectional standard was developed to meet the requirements of most automatic watches on the market, regardless of the architecture of their oscillating weight.
It is worth noting that each rotation cycle is followed by a pause, allowing the mainspring to unwind naturally and preventing excessive strain on the movement.
This universal setting is built into the Startbox Watch Winder, which is ready to operate as soon as it is switched on, with no configuration required. For watches whose requirements differ from this standard, personalised programming is available with the Masterbox programmable Watch Winder.
What TPD does your watch need? Recommended settings by watchmaking maison
The values below are taken from the SwissKubik database, which is regularly updated and integrated into the mobile app accompanying Masterbox programmable Watch Winders. They are provided for guidance only: winding requirements may vary depending on the exact calibre and its generation. For official specifications relating to your particular model, we recommend contacting your watch brand directly or consulting its technical documentation.
Key: CW (Clockwise) — CCW (Counter-Clockwise) — Bidirectional: alternates between clockwise and counter-clockwise rotation.
Values taken from the SwissKubik database and provided for guidance only.
The standard bidirectional setting of SwissKubik Watch Winders — 800 turns in each direction — presents no risk to the mechanism.
Not sure how many turns are recommended for your watch? The SwissKubik mobile app guides you: select your model to access the corresponding settings for the number of turns and direction of rotation, ready to apply directly to your Masterbox Watch Winder.
| Watchmaking maison | Recommended TPD | Direction of rotation | Details |
| Rolex | 650 or 800 | Majoritairement 2 sens, quelques modèles CW | — |
| Patek Philippe | 800 | CW, CCW or bidirectional depending on the model | Up to 1,000 for calibre AL 30-660 S C FUS and the 5520P Grand Complications Alarm Travel Time |
| Audemars Piguet | 600 to 800 | CW, CCW or bidirectional depending on the model | — |
| Omega | 950 | Bidirectional | — |
| Vacheron Constantin | 540 | Bidirectional | Exceptions: Traditionnelle 6300T: 320 — Traditionnelle 4030T: 1,180 |
| Breitling | 650 or 800 | CW, CCW or bidirectional depending on the model | — |
| Cartier | 500 to 950 | CW, CCW or bidirectional depending on the model | — |
| IWC | 650 to 1,000 | CW, CCW or bidirectional depending on the model | — |
| Tudor | 650 or 800 | Bidirectional or CW depending on the model | — |
What TPD for grand complication watches?
Perpetual calendar, moon phase, tourbillon, automatic chronograph: grand complications add further mechanisms to the base movement, some of which draw more heavily on the available energy reserve. Certain references therefore require a higher TPD than the average for their manufacture, while others operate with lower values. There is no universal rule: every complication and every calibre has its own requirements.
Yet the stakes are higher than with a three-hand watch. When a perpetual calendar or moon phase watch stops, restarting it means resynchronising all its indications — a lengthy and meticulous process that may sometimes require the expertise of a professional watchmaker.
For these exceptional timepieces, SwissKubik recommends two things: checking the value specific to your reference using the app database or the manufacture’s documentation, and choosing aWatch Winder with individual programming capable of adhering precisely to the required setting.
Direction of rotation: clockwise, counter-clockwise or bidirectional?
TPD alone is not enough: the direction of rotation is the second key winding parameter. There are three configurations. Clockwise rotation (CW) and counter-clockwise rotation (CCW) are designed for calibres whose oscillating weight winds the movement in only one direction. Bidirectional rotation, which alternates between both directions, is suitable for calibres capable of recovering energy in either direction and is the most universal mode.
The two parameters are inseparable: even a perfectly calibrated number of turns will be significantly less effective if performed in an unsuitable direction and may even prove ineffective for winding the watch.
The table above shows the predominant configurations by manufacture. Some maisons, such as Omega or Vacheron Constantin, use bidirectional winding, while others vary from one calibre to another, including within the same collection. To determine the direction required by your watch, contact the manufacturer or consult its technical documentation.
Setting the TPD on your SwissKubik Watch Winder
Startbox: the universal standard, with no settings required. Factory-configured for a cycle of 1,600 rotations per day — 800 in each direction — theStartbox single Watch Winder is ready to operate as soon as it is switched on. Its optical reader measures the exact number of rotations performed, whereas other winders rely on estimates. It is the ideal solution if your watch is compatible with the standard setting.
Masterbox: precise rotation programming. Connected via Bluetooth, theMasterbox programmable Watch Winder can be configured through the SwissKubik mobile app. The number of turns and direction of rotation can be adjusted to suit the requirements of each watch, based on recommendations from the integrated database, which is regularly updated. Its optical readers ensure that the selected settings are executed accurately. Available in several capacities, including a 12 Watch Winder, it allows each timepiece in your collection to be assigned its own winding profile.
Travelbox: personalised settings wherever you go. TheTravelbox travel Watch Winder incorporates a winding module that can be programmed via USB-C and/or Bluetooth, offering the same options for customising rotation cycles. Your watch retains its tailor-made setting wherever you go.
FAQ: your questions about TPD
What is the difference between TPD and direction of rotation?
TPD indicates how many rotations the Watch Winder performs over 24 hours, while the direction of rotation determines which way it turns: clockwise (CW), counter-clockwise (CCW) or alternating between both directions. The two parameters complement one another and must correspond to the requirements of the calibre. On Masterbox programmable Watch Winders, they can be adjusted independently through the SwissKubik app.
Can an incorrect TPD setting damage my watch?
An insufficient TPD does not damage the watch: it simply does not provide enough energy, meaning the power reserve gradually decreases and the watch eventually stops. The main inconvenience is practical, particularly for complication watches that can be time-consuming to reset.
Does a Watch Winder need to rotate continuously?
No. A quality Watch Winder alternates rotation cycles with periods of rest, reflecting the natural rhythm of a wrist. SwissKubik Watch Winders pause between each cycle, allowing the watch’s mainspring to unwind naturally. TPD refers to the total number of rotations distributed throughout the day, never to continuous rotation.
What TPD for a Rolex?
Rolex watches require 650 or 800 turns per day depending on the model, predominantly with bidirectional rotation. These values are taken from the SwissKubik database, which is compiled and refined using the technical specifications of leading watch manufactures.
