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.
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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 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 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 Guides Watch Service History: Verify It From a Japanese Listing (2026)
How to verify a watch service history from a Japanese listing: read the invoice, tell a service card from a warranty card, and spot swapped parts before you buy.
Buying from Japan Jaeger-LeCoultre Reference Number: How to Verify a Japanese Listing
Jaeger-LeCoultre reference number decoded: why the Q catalog number differs from the engraved case number, and the codes to verify a Japanese listing.
Buying from Japan Date a Vintage Rolex Oyster Case from Photos (Japan, 2026)
Date a vintage Rolex Oyster case from photos when buying from Japan: serial location (lugs vs rehaut), random serials from 2010, plus caseback and crown cues.