Guides
In-depth articles on identifying, dating, and understanding watches and jewelry. Written for collectors, inheritors, and the simply curious.
Watch Serial Number Lookup by Brand
How serial-number dating works for Rolex, Omega, Seiko, Citizen, Bulova, Elgin, Waltham, and more — with links to each brand's interactive decoder.
Jewelry Stamp Abbreviations: The Complete List
One reference table for every common stamp — 925, S925, 800, 750, 585, KP, GP, HGE, GF, RGP, EPNS, PT950, and more — with what each means for metal and value.
Silver Plate vs. Sterling: How to Tell the Difference
A six-step decision tree — fineness marks, plate marks, hallmarks, wear clues, the magnet myth, and when to get a professional test.
How to Spot a Fake Rolex: The Complete 2026 Guide
A detailed, photo-rich walkthrough of every checkpoint — from the Cyclops lens and rehaut engraving to clasp codes and movement finishing.
The Complete Guide to British Hallmarks
How to read the lion passant, assay office marks, date letters, and maker's marks on British silver and gold.
How to Date a Vintage Watch Using Serial Numbers
Brand-by-brand guide to decoding serial numbers and case-back engravings to determine when your watch was made.
The Beginner's Guide to Watch Case Back Markings
Everything you see when you flip a watch over — decoded. Serial numbers, model references, water resistance ratings, material stamps, and more.
I Found an Old Ring — How to Read Its Hallmarks
A practical, step-by-step guide for non-experts who have found or inherited a ring and want to understand its markings.