ETA Movement Information Technical Sheets Parts Reference Calibres Watchmakers

Technical reference data for 186 ETA calibres, from vintage to modern movements, covering assembly, parts and servicing information in one collection.

⭐ At a glance

📦 Contents: around 400 PDF files, roughly 2,000–3,000 pages in total

✅ Coverage: 186 different ETA calibres, vintage through to modern

Languages: some documents presented in English, French and German

✔️ Condition: New

🔧 What it does & how to use

This is a reference set for watchmakers and repairers, built to help identify parts, source correct replacements and carry out servicing correctly. It includes exploded assembly diagrams, part number listings, interchangeability charts, lubrication points and lubricant recommendations, plus manufacturing information such as case diameters, battery details, functions and construction — including exact measurements for parts like the cannon pinion and hour wheel, useful for working out correct hand sizes.

• Identify the calibre: find the ETA reference number on the movement and locate the matching PDF in the set.
• Strip and rebuild: use the exploded assembly diagrams to take the movement apart and reassemble it correctly.
• Source parts: cross-check part numbers shown on the diagrams when ordering or identifying replacement components.
• Service correctly: follow the lubrication charts to see which points need oiling and which lubricant to use.
• Check manufacturing specs: refer to the diameter, battery and construction data when casing up or fitting hands.

⚠️ Please check that your specific ETA calibre is among the 186 covered before buying, as the depth of information provided varies between movements.