Buying Guide Breguet Reference Numbers: Verify a Japanese Listing (2026)
Read a Breguet reference number: what the metal codes (BA, BB, BR, PT, TI) mean, where the serial and secret signature sit, and how to verify a Japanese listing.
2026-09
Buying Guide Buying Guide Chopard Reference Numbers: Verify a Japanese Listing (2026)
Read a Chopard reference number and serial number, decode the metal code, and verify a Japanese listing before you buy. Why there is no public Chopard serial lookup.
Buying Guides Ulysse Nardin Reference Numbers: Verify a Japanese Listing (2026)
Ulysse Nardin reference numbers encode caliber, case, and dial, but there is no public serial lookup. How to read one and verify a Japanese listing in 2026.
Buying Guides Piaget Reference Numbers: Verify a Japanese Listing (2026)
How to read a Piaget reference number and serial number, decode vintage cal-code references, and verify a Japanese Piaget listing before you buy from abroad in 2026.
Buying Guide Girard-Perregaux Reference Numbers: Verify a Japanese Listing (2026)
A Girard-Perregaux reference number encodes the model, case material and dial. How to read the caseback and verify a Girard-Perregaux from a Japanese listing, 2026.
Buying Guides Vacheron Constantin Reference Numbers: Verify a Japanese Listing 2026
Read a Vacheron Constantin reference number and serial number from a Japanese listing: metal codes, engraving locations, and why serial dating is only approximate.
Buying Guide A. Lange & Söhne Reference Numbers: Verify a Japanese Listing (2026)
An A. Lange and Söhne reference number is six digits (XXX.XXX). Learn to read the model, metal and generation, and verify the reference against a Japanese listing.
Buying from Japan Audemars Piguet Reference Numbers: Verify a Japanese Listing (2026)
Read an Audemars Piguet reference number segment by segment, decode the case-material letters, and check a Royal Oak against a Japanese listing before you buy.
Buying Guides Patek Philippe Reference Numbers: Verify a Japanese Listing (2026)
Decode a Patek Philippe reference number from a Japanese listing: case-material letters, the /1 bracelet code, dials, and the papers to verify before buying in 2026.
Buying from Japan Over-Polished Rolex Signs: Read a Japanese Listing (2026)
Over-polished Rolex signs you can read from photos in a Japanese listing: rounded lugs, faint engravings, oval lug holes, plus the exact macro shots to request.