Technische Unterlagen – Master Watch Parts

📄 Technical documents

Welcome to our comprehensive database of movement interchangeability lists and technical documentation. Quickly and reliably identify compatible spare parts for mechanical watch movements – free of charge and browsable directly online.

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📋 Documents

🔧 Look up interchangeability

Choose manufacturer, caliber and part – you will immediately see which other movements use the same part.

🌀 Look up a mainspring

Choose brand and caliber – you will see the mainspring dimensions from the Générale Ressorts catalogue and, if in stock, the matching mainspring from our shop.

Our interchangeability lists help you identify the right spare parts for mechanical watch movements quickly and reliably. In addition, we offer specific data sheets for a wide range of brands and calibres. Beyond simply searching for parts, this gives you a comprehensive technical archive for the precise servicing and repair of your movements.
Movement interchangeability lists by manufacturer
Our database contains movement interchangeability lists for all major calibre manufacturers. Whether you are looking for a spare part for a Sellita movement, an ETA calibre, an AS movement or a rare Venus chronograph movement – you will find it here. The lists show you which parts are compatible between different calibres.
Available manufacturers: AS, EB, ETA, Felsa, FHF, FE, FEF, Förster, Junghans, Landeron, Peseux, PUW, Sellita, ST, UT, Venus and others.
Why interchangeability lists matter
When repairing vintage watches, sourcing spare parts is often a challenge. Many original parts are no longer available. A movement interchangeability list shows you which components from other calibres (e.g. Sellita SW200 for ETA 2824) can be used as replacements. This saves time and money when restoring mechanical watches.
⚠️ Disclaimer for technical documents
1. Copyright notice:

All technical specifications, interchangeability lists and movement drawings shown are the intellectual property of the respective trademark owners. The brand names are used here solely to identify the right spare parts for the customer.

2. Restriction of use:

Access to this data is provided purely for information purposes in connection with a repair or the identification of spare parts. Permanent storage or reproduction of the documents is not permitted.

3. Liability:

To the extent permitted by law, no liability is accepted for damage to movements or tools resulting from the use of this information.

4. Reporting infringements:

We respect intellectual property. If there is any disagreement regarding the publication, please contact us directly via our contact form so that the matter can be clarified immediately.

🛠️ For the workshop

Original Super Luminova Lume for Watch Hands, A60 Clear Varnish Binder, 1 gOriginal Super Luminova Lume for Watch Hands, A60 Clear Varnish Binder, 1 g15,90 € incl. VAT *View item ›Sapphire Watch Crystal, Flat, 1.5 mm, Ø 18 - 45 mmSapphire Watch Crystal, Flat, 1.5 mm, Ø 18 – 45 mm27,90 € – 42,90 € incl. VAT *View item ›Sternkreuz Savonette Plastic Watch Crystal, Extra Thin, 22-46 mm – NOSSternkreuz Savonette Plastic Watch Crystal, Extra Thin, 22-46 mm – NOS12,90 € – 13,90 € incl. VAT *View item ›