The Winding Index — The State of Automatic Watch Winding 2026
The Winding Index is a census of how automatic watches actually wind. It is built from the Aevitas TPD database — 4,918 winding records compiled from manufacturer specifications and checked sources — audited record by record in October 2026. This page publishes what survived that audit: 4,302 automatic watches with a verified winding setting. How the data was built, checked and cleaned is set out in full on our methodology page.
The three numbers that matter
650 — the median automatic watch needs 650 turns per day (TPD), and it is also the most common single setting: 49.0% of all watches in the Index sit at exactly 650.
Nearly 4 in 10 — 39.3% of automatic watches wind in one direction only. Set a winder turning the wrong way for one of these movements and the watch receives nothing at all.
90.2% — nine in ten automatic watches need between 650 and 800 TPD. The exotic settings exist, but they are a thin tail: just 1.1% of watches need more than 1,000 TPD.
Direction: the setting owners get wrong
Most winder advice obsesses over the TPD number. The data says the risk sits elsewhere. Of the 4,302 watches in the Index:
| Winding direction | Share | Watches |
|---|---|---|
| Bidirectional | 60.7% | 2,612 |
| Clockwise only | 25.9% | 1,116 |
| Counter-clockwise only | 13.3% | 574 |
A bidirectional movement winds whichever way the rotor turns. A unidirectional movement winds one way and freewheels the other — so on a winder set to the wrong single direction, it gets zero winding while appearing to be looked after, and runs down over a few days. If you do not know your movement's direction, bidirectional is the safe default: it serves every watch in this dataset at least half the time, and most modern winders rotate both ways by design. If you do know it, set it exactly — the per-model answer is in the TPD database.
The distribution: two settings run the world
There are only 33 distinct TPD values across all 4,302 watches, and two of them dominate:
| TPD | Watches | Share |
|---|---|---|
| 650 | 2,110 | 49.0% |
| 800 | 1,537 | 35.7% |
| 725 | 133 | 3.1% |
| 850 | 97 | 2.3% |
| 875 | 63 | 1.5% |
| 700 | 57 | 1.3% |
| 1,000 | 47 | 1.1% |
Just 62 watches (1.4%) need less than 650, and 47 (1.1%) need more than 1,000. The full range runs from 200 TPD to 1,350 TPD — but the centre of gravity of the entire automatic-watch world is a single number: 650.
Brand by brand: haute horlogerie is hungrier
The mainstream Swiss names cluster at 650. The high-end houses ask for more — and two famous names wind against the world. Medians, ranges and direction profiles for the brands with the deepest coverage (direction percentages are bidirectional / clockwise-only / counter-clockwise-only, rounded):
| Brand | Models | Median TPD | Range | Most common | Bi / CW / CCW % |
|---|---|---|---|---|---|
| IWC | 274 | 800 | 650–1,000 | 800 (59%) | 74 / 24 / 2 |
| Patek Philippe | 264 | 800 | 800–900 | 800 (99%) | 2 / 12 / 87 |
| Omega | 236 | 650 | 650–800 | 650 (69%) | 70 / 30 / 0 |
| Breitling | 215 | 650 | 650–800 | 650 (63%) | 77 / 23 / 0 |
| Oris | 178 | 650 | 650–800 | 650 (78%) | 79 / 21 / 0 |
| Ulysse Nardin | 171 | 650 | 650–900 | 650 (80%) | 88 / 12 / 0 |
| TAG Heuer | 167 | 650 | 200–820 | 650 (66%) | 80 / 20 / 0 |
| Longines | 156 | 650 | 650–800 | 650 (58%) | 58 / 40 / 3 |
| Jaeger-LeCoultre | 153 | 875 | 600–1,350 | 875 (41%) | 40 / 1 / 59 |
| Audemars Piguet | 136 | 650 | 600–820 | 650 (54%) | 76 / 12 / 12 |
| Blancpain | 95 | 800 | 540–1,080 | 650 (43%) | 1 / 83 / 16 |
| Vacheron Constantin | 94 | 800 | 650–850 | 800 (91%) | 71 / 15 / 14 |
| Glashütte Original | 76 | 850 | 650–925 | 850 (47%) | 30 / 1 / 68 |
| Piaget | 71 | 1,080 | 540–1,340 | 1,080 (28%) | 44 / 31 / 25 |
| Rolex | 44 | 650 | 650 | 650 (100%) | 100 / 0 / 0 |
Patek Philippe winds the other way. Across 264 models, 87% are counter-clockwise only and 99% specify exactly 800 TPD — census-scale confirmation of Patek's unidirectional rotor design. Blancpain rebels in the opposite direction: 83% clockwise only. Jaeger-LeCoultre is the hungriest of the large houses by median (875 TPD) and leans counter-clockwise (59%). And Piaget out-hungers them all: a median of 1,080 TPD across 71 models, a figure our audit verified calibre by calibre before publishing it here.
Rolex is the great simplifier: every one of the 44 Rolex models in the Index — the audited dataset records plus researched additions at high confidence — takes the same setting, 650 TPD bidirectional. One setting for an entire range is found nowhere else at this scale.
Each brand's full data — its hungriest and least demanding models, its setting-by-setting breakdown and what it means for your winder — is on its own page: IWC · Patek Philippe · Omega · Breitling · Oris · Ulysse Nardin · TAG Heuer · Longines · Jaeger-LeCoultre · Audemars Piguet · Blancpain · Vacheron Constantin · Piaget · Rolex.
The extremes
The least demanding watch in the Index needs just 200 TPD: TAG Heuer's Monaco V4, whose belt-driven movement is one of the strangest ever sold, and its tourbillon sibling. The most demanding is a Jaeger-LeCoultre Master Hometime at 1,350 TPD, just ahead of Piaget's ultra-thin Altiplano family at 1,340. And the dataset's curiosity: Richard Mille specifies an oddly precise 741 TPD for 11 of its 13 models in the Index (85%) — no round numbers in Le Breuleux, apparently.
What this means for your winder
Three practical conclusions fall out of the data. First, direction matters more than the exact TPD figure: a winder that rotates both ways, or is set to your movement's direction, cannot starve a watch; one turning the wrong way can. Second, a winder covering 650–800 TPD serves 90.2% of all automatic watches — which is why sensible winders centre their range there, and why claims that a watch needs an exotic setting should be checked against the model, not believed. Third, the exact answer is per-model, not per-brand: even a "650 brand" like Omega has models at 700 and 800. Find yours in the TPD database lookup or browse the settings index of 255 written model guides — then choose a winder that covers it, from our watch winder collection.
Frequently asked questions
What TPD does my watch need?
Most likely 650. Across the 4,302 automatic watches in the Winding Index, 650 turns per day is both the median and the single most common setting, applying to 49.0% of all models, and 90.2% of watches need between 650 and 800 TPD. But the only figure that matters is your model's: look it up in our TPD database or the model-by-model settings index.
What is the most common TPD for an automatic watch?
650 TPD. It is the setting for 2,110 of the 4,302 watches in the Index (49.0%), ahead of 800 TPD at 1,537 (35.7%). Between them, those two settings cover the large majority of automatic watches ever made.
Do all automatic watches wind in both directions?
No. Nearly 4 in 10 — 39.3% of the watches in the Index — wind in one direction only: 25.9% clockwise only and 13.3% counter-clockwise only. A unidirectional movement on a winder turning the wrong way receives no winding at all and will run down, which is why direction matters more than the headline TPD number.
Which watch brand needs the most winding?
Piaget. Across 71 Piaget models in the Index, the median setting is 1,080 TPD — the highest of any major brand, driven by its ultra-thin movements. The single hungriest watch in the dataset is a Jaeger-LeCoultre Master Hometime at 1,350 TPD.
Will the wrong TPD or direction damage my watch?
No. A modern automatic cannot be overwound — a slipping bridle in the mainspring barrel sheds any excess. The wrong setting simply under-winds the watch: set too low, or turning the wrong way for a unidirectional movement, it will slowly lose power and stop. Getting the setting right is about the watch always being ready to wear, not about avoiding damage.
About this data
The Index is the October 2026 edition, compiled from 4,918 records and published at 4,302 after audit: conflicting records were resolved against their sources, 473 records in three single-source brand clusters were quarantined rather than printed, and 117 unverified records were excluded. The full method, including the conventions and the corrections policy, is on the methodology page. Journalists and researchers: the findings on this page are free to cite with a link back to the Index.
Four winders worth knowing
Data only gets you so far — these are the winders readers most often end up with. Each one covers the settings the findings above call for, in both directions. All four are carbon fibre, all carry at least a 3-year warranty, and all can be repaired by our own UK workshop — even years after the warranty ends.
