Ronda Watch Stem Reference Catalog Technical Vintage Watches Stems

67-page Ronda stem reference catalogue from 1974, listing exact stem dimensions for vintage watch movements by maker and calibre.

⭐ At a glance

📏 67 pages of reference data

✅ Covers vintage watches only — compiled in 1974, nothing modern included

📦 Supplied on a USB memory stick

✔️ New, unbranded reference copy

🔧 What it does & how to use

This is a technical reference tool for anyone servicing or repairing vintage watches — useful for hobbyists and professional watchmakers alike who need to identify the correct replacement stem for a given movement. Makers and brands are listed alphabetically with a page number, then broken down further by movement calibre, giving the Ronda reference number and section with the exact stem dimensions needed for ordering or fitting a replacement.

• Find the maker: Look up the watch brand or manufacturer in the index to get its page number.
• Go to the calibre: Turn to that maker's section, which is divided by individual movement calibre.
• Read the Ronda number: Note the Ronda reference number listed against that calibre.
• Check the dimensions: Use the accompanying section data to confirm the exact stem length and thread specification before ordering or fitting.

⚠️ Please check you have a spare USB port to read the memory stick, and note this catalogue only covers vintage calibres in production up to 1974 — it will not include later or modern movements.