Rolex
Older sequential serials give an approximate period. Random eight-character serials do not disclose a production year.
Watch Guides
Read your watch’s numbers, trace its history and know what to look for before buying or selling.
Serial numbers, by brand
Where to find the number, what it tells you about a watch’s age, and when to turn to the archives.
Omega
Use the reference, movement and dated documents together. A serial match is one clue, not an authenticity certificate.
Cartier
Use dated documents and the model's history; do not read the serial as a universal year code.
Patek Philippe
Archive records can establish history; an eligible watch's first sale must be at least ten years ago.
Audemars Piguet
Older movement ranges suggest a period. Numbering changed in 2017; modern random codes do not provide a public year key.
Tudor
Check the reference, sale documents and service history together. A Rolex serial chart should not be used to date a Tudor.
Breitling
Official archive extracts cover eligible watches from 1946–1979; newer pieces need their own records.
Buying, selling & appraisal
Where to Buy a Pre-Owned Rolex in Istanbul
Where to buy a pre-owned Rolex in Istanbul: choosing a trustworthy dealer, authenticity checks, why a full set matters, and realistic pricing.
Read the guideHow to Sell Your Rolex: What to Know First
Selling your Rolex? Valuation drivers, the truth about polishing, the full-set premium, dealer vs consignment vs private sale, and safe payment.
Read the guideWatch Appraisal Guide: What a Professional Valuation Covers
What does a watch appraisal cover? Authenticity checks, movement inspection, parts verification, condition grading and market valuation explained.
Read the guideCome across a term you don't know? Browse the watch glossary