Welcome to the final episode of Watch World Series 2 — Aevitas UK's continuing celebration of the art, history, and obsession of fine watchmaking. We've covered straps and bracelets, vintage collecting, hidden gems, and iconic designs. This final episode answers the question that every collector eventually asks: how is a luxury watch actually made?
What Is a Manufacture?
In the watch industry, the word "manufacture" has a specific meaning. A manufacture — from the French word for factory — is a watchmaker that designs and produces its own movements in-house, rather than sourcing them from a third-party supplier. The distinction matters enormously to collectors and to the industry.
True manufactures — Rolex, Patek Philippe, Audemars Piguet, A. Lange & Söhne, Jaeger-LeCoultre — control every stage of movement production, from the design of individual components to final assembly and regulation. This vertical integration allows them to maintain quality standards impossible to achieve when relying on external suppliers, and to develop proprietary technologies that differentiate their movements from competitors.
The term is sometimes used loosely by brands that produce only some of their components in-house. True manufacture status — designing and producing the movement, escapement, and mainspring entirely in-house — is achieved by fewer than twenty brands in the world.
Step 1: Design and Engineering
Every watch begins as a design — not of the case or dial, but of the movement. Movement design is a discipline that combines mechanical engineering, materials science, and aesthetic sensibility in equal measure. A new calibre may take three to seven years to develop from initial concept to production-ready movement.
Modern movement design uses computer-aided design (CAD) software to model every component in three dimensions, simulate the interaction of parts under load, and optimise tolerances before a single physical component is produced. The design process includes not only the functional architecture of the movement — the gear train, escapement, and winding mechanism — but also the decorative finishing that will be applied to every visible surface.
At Patek Philippe, the design of a new movement is reviewed by a committee that includes the company's president, chief movement designer, and head of quality control. No movement enters production without unanimous approval. The process is deliberately slow; Patek Philippe introduces fewer than five new calibres per year.
Step 2: Component Production
A mechanical watch movement contains between 100 and 400 individual components — and in a grand complication, considerably more. Each component must be manufactured to tolerances measured in microns (thousandths of a millimetre). The methods used to achieve this precision have evolved significantly over the past three decades.
CNC machining — computer-controlled cutting of metal blanks — is used to produce the mainplate, bridges, and most structural components. Modern CNC machines can hold tolerances of ±2 microns, enabling consistency impossible to achieve by hand. The raw material is typically brass for most components, with steel used for the gear train and escapement parts.
Electroforming is used to produce extremely thin or complex components — including some escapement parts and decorative elements — by depositing metal onto a precisely shaped mandrel. The process allows geometries impossible to achieve by machining.
Silicon components — hairsprings, escapement wheels, and pallet forks — are produced using a process borrowed from semiconductor manufacturing: deep reactive ion etching (DRIE), which cuts silicon wafers to extraordinary precision using a plasma beam. The result is components with tolerances of less than one micron.
Step 3: Surface Finishing
In a luxury watch movement, every visible surface is decorated by hand. This is not merely aesthetic — it is a demonstration of quality and a mark of genuine manufacture status. The finishing of a movement takes as long as its assembly, and in some cases longer.
Côtes de Genève (Geneva stripes) are parallel lines applied to flat surfaces using a rotating abrasive wheel. The wheel is moved across the surface in a single stroke, then repositioned for the next stripe. The spacing must be perfectly consistent; any deviation is immediately visible.
Perlage (circular graining) is applied to surfaces that will not be visible in the finished watch — the underside of the mainplate, for example. A rotating peg is pressed against the surface and moved in overlapping circles, creating a pattern of overlapping circular marks. It serves no functional purpose; it is purely a demonstration of craft.
Anglage (bevelling and polishing of edges) is the most demanding finishing technique. Every edge of every component — including the teeth of gear wheels and the arms of bridges — is bevelled at 45 degrees and polished to a mirror finish using a wooden peg charged with diamond paste. On a complex movement, this process involves thousands of individual edges. At A. Lange & Söhne, the anglage on a single movement can take over 100 hours.
Step 4: First Assembly
Once all components have been produced and finished, the movement is assembled for the first time. This is done by a specialist watchmaker — not the person who will assemble the final watch, but a technician whose role is to verify that all components function correctly together.
The assembly begins with the mainplate — the base on which all other components are mounted. The gear train is installed first, followed by the escapement, the winding and setting mechanism, and finally the balance wheel. Each component is secured with screws measured in fractions of a millimetre, tightened to a specific torque using calibrated tools.
At A. Lange & Söhne, every movement is assembled twice. The first assembly verifies function; the movement is then completely disassembled, cleaned in an ultrasonic bath, and reassembled for the final time. This double-assembly process — unique to Lange — ensures that no contamination from the first assembly affects the final performance of the movement.
Step 5: Regulation
Once assembled, the movement must be regulated — adjusted to run at the correct rate in all positions. A mechanical movement runs at slightly different rates depending on its orientation: dial up, dial down, crown up, crown left, crown right, and crown down. The regulator — a specialist watchmaker — adjusts the effective length of the hairspring and the position of the balance wheel to minimise these positional errors.
At Rolex, regulation is performed by automated machines that measure the movement's rate in multiple positions and make micro-adjustments to the regulator. The movement must achieve an accuracy of -2/+2 seconds per day — significantly tighter than the COSC chronometer standard of -4/+6 seconds per day — before it is approved for casing.
At Patek Philippe, regulation is performed entirely by hand. Each movement is regulated by a master watchmaker who measures its rate over several days in multiple positions, making incremental adjustments until the movement meets Patek's internal standard of -3/+2 seconds per day.
Step 6: Casing and Final Quality Control
Once the movement has passed regulation, it is cased — installed in the watch case along with the dial and hands. This is a delicate process: the dial must be positioned precisely, the hands set at exactly 12 o'clock, and the movement secured without contaminating the dial surface.
The cased watch then undergoes final quality control. At Rolex, every watch is tested for water resistance in a pressurised tank before leaving the manufacture. At Patek Philippe, every watch is worn on a mechanical wrist simulator for several days before final inspection. At Omega, Master Chronometer-certified watches are tested by METAS — the Swiss Federal Institute of Metrology — in a magnetic field of 15,000 gauss, verifying that the movement maintains accuracy even in extreme magnetic environments.
The Human Element
Despite the sophistication of modern manufacturing technology, the finest luxury watches remain fundamentally handmade objects. The CNC machines that produce components to micron tolerances are programmed and supervised by skilled engineers. The finishing that covers every surface of a movement is applied by hand, one stroke at a time. The regulation that ensures accuracy is performed by watchmakers who have spent years developing the sensitivity to feel the difference between a movement that runs at -1 second per day and one that runs at -2.
This human element is not inefficiency — it is the point. A luxury watch is not merely a timekeeping device; it is a demonstration of what human skill and dedication can achieve when applied to a problem of extraordinary complexity. The 400 hours of labour that go into a Patek Philippe grand complication are not a manufacturing cost to be minimised; they are the product itself.
Caring for Your Manufacture Watch
A watch that has taken years to design and hundreds of hours to build deserves exceptional care. For automatic movements, a quality watch winder keeps the movement running between wears — preventing lubricants from settling and reducing the wear that occurs when a movement is repeatedly wound from fully run-down. Our premium watch winder range includes models with individual TPD control for each bay, ensuring every movement in your collection receives the correct winding programme. Use our TPD settings database to find the correct specification for any calibre.
For storage, a quality watch box protects the case, crystal, and bracelet from dust and scratches — preserving the condition that, as we explored in Episode 3, is one of the primary drivers of long-term value. Our watch box range covers collections from four to thirty watches in finishes from carbon fibre to burl walnut. For high-value collections, our insurance-rated watch winder safes provide certified security alongside precision winding.
You May Also Like
→ Premium Watch Winders — precision winding for every automatic calibre.
→ Watch Winder Safes — insurance-rated security for valuable collections.
→ TPD Settings Database — correct winder settings for every manufacture calibre.
→ Watch World Episode 1 — where the series began.
Frequently Asked Questions
How long does it take to make a luxury watch?
A standard production watch from a major manufacture — a Rolex Submariner or Omega Seamaster — takes approximately 400–600 hours of total labour from component production to finished watch. A grand complication from Patek Philippe or A. Lange & Söhne can take several thousand hours. The development of a new movement calibre typically takes three to seven years.
What is the difference between a manufacture and a non-manufacture watch brand?
A manufacture designs and produces its own movements in-house. A non-manufacture brand — sometimes called an assembler — sources movements from third-party suppliers such as ETA or Sellita and installs them in its own cases. Both can produce excellent watches; the distinction matters primarily to collectors who value the engineering achievement of in-house movement production.
Why do luxury watches need servicing?
Mechanical watch movements contain lubricants that degrade over time — thickening, drying, or migrating to where they are not needed. A service replaces these lubricants, checks for wear on components, and regulates the movement to restore accuracy. Most manufacturers recommend servicing every five to ten years. A quality watch winder can extend service intervals slightly by keeping the movement running consistently.
Can I service my own watch?
For most luxury watches, no — the tools, skills, and environment required for a proper service are beyond the reach of most enthusiasts. Attempting to service a luxury watch without proper training risks damaging irreplaceable components. Always use a qualified watchmaker — ideally one authorised by the manufacturer for the brand in question.
Will there be a Series 3 of Watch World?
Absolutely. Watch World Series 3 is coming — with more deep dives, more stories, and more of the horological obsession that makes this hobby so endlessly compelling. Follow the Aevitas blog to be the first to know when it launches.
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