Supported Features
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Larger Text
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Dark Interface
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Differentiate Without Colour Alone
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Sufficient Contrast
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Reduced Motion
The Watchmakers App
Identify movements and more
Free · In-App Purchases · Designed for iPad
Your complete reference for watch movements, parts, and trademarks — ~12,000 calibers, 65,000+ marks, and detailed interchangeability data.
The Watchmakers App is an iPhone and iPad app for quickly identifying, researching, and comparing watch movements and parts.
• Access the most reliable, detailed, structured, and searchable information on ~12,000 watch calibers, interlinked with tens of thousands of watch parts.
• Identify any movement by photo against our industry-leading proprietary database using a deep-dive, logic-driven process that outperforms guessing AI, giving you manual-grade precision and total control at every step.
• 100+ search filters, including manufacturer, country, power source, complications, escapement, shape, balance position, and more, for quick identification of the movement.
• More than 1,000 technical data sheets from original manufacturers, parts interchangeability information from Jules Borel, BestFit, Boley, Flume and GR mainsprings information in collaboration with Generale Ressorts, linked directly to the related caliber infosheets.
• Thanks to subscribers to the paid plans, the data in the app is continuously updated and improved with verified data from catalogs, manufacturers, archives, and experts — ensuring the information you rely on stays accurate and current. This commitment to accuracy is what really separates this app from other available watch movement databases.
• Closely integrated with the largest horological trademarks database, mikrolisk.de, offering a quick search within the app of 65,000+ hallmarks to find more historical context for vintage movements.
• Offers the most comprehensive lists for many manufacturers' movements, including Rolex, Patek Philippe, and many others, as well as the most comprehensive U.S. import codes list.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
* Added information about 20K+ parts from Boley
* Added infosheet: FHF 31-1
* Updated infosheet: Tudor 390, 59 (SC), 59, FHF 30-1, Valjoux 5 KVM, Girard-Perregaux 40.0, Audemars Piguet 2003, AM 270, 440, 523, 483, 503, Damas 51, FEF 170, 191, 250, Rolex 59 (SC), Rolex 59, 1030, JLC 410, 411, 412, 413, 11LO, 424, 436, 437, 486, 806, EB 867, Certina 28-351, 28-353
* Linked added caliber infosheets with matching mainsprings from Generale Ressorts (GR) catalogue and parts from Jules Borel, BestFit and Boley
* Other user experience, user interface and data improvements
The developer, Deniss Fedotovs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- User Content
- Search History
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Provider
- Deniss Fedotovs
- Size
- 138.2 MB
- Category
- Reference
- Compatibility
Requires iOS 17.4 or later.
- iPhone
Requires iOS 17.4 or later. - iPad
Requires iPadOS 17.4 or later. - Mac
Requires macOS 14.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.1 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Messaging and Chat
User-Generated Content
- In-App Purchases
Yes
- Enthusiast Monthly USD 6.99
- Enthusiast Yearly USD 59.99
- Copyright
- © 2025, Deniss Fedotovs