reference numbers

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.
2026.09.28
Buying from Japan
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.
2026.09.28
Buying Guides
Buying from Japan

Buy Vintage Tudor from Japan: References to Know (2026)

Buy vintage Tudor from Japan: decode Snowflake, Monte Carlo and Oyster Prince references, spot redials, and estimate 2026 landed cost remotely.
2026.09.17
Buying from Japan
Buying from Japan

Grand Seiko Model Numbers: Verify a Japanese Listing (2026)

Decode a Grand Seiko model number (SBGA211, SLGH005) and case-back caliber code before buying from Japan: SB/SL/ST lines, Spring Drive vs Hi-Beat vs quartz.
2026.09.16
Buying from Japan
Buying from Japan

Cartier Reference Number Explained: How to Verify a Japanese Listing

How to decode a Cartier reference number and verify it against a Japanese pre-owned listing in 2026, when Cartier has no public serial lookup.
2026.09.11
Buying from Japan
Buying from Japan

Orient Model Number Explained: Reading JDM Codes in 2026

Read an Orient model number and case-back code to find the caliber, see why RA/RN and RE/RK prefixes flag export vs JDM versions, and spot a mismatched listing.
2026.09.09
Buying from Japan
Guides

Tudor Reference Number Explained: How to Verify a Japanese Listing

Learn how to read a Tudor reference number, tell it apart from the serial number, and use it to verify a Japanese pre-owned listing before you pay.
2026.09.07
Guides
Buying Guides

Omega Reference Number Explained: How to Verify a Japanese Listing

Omega reference number explained: how to read the 14-digit PIC, tell it from the serial, and sanity-check a Japanese pre-owned listing before buying from abroad.
2026.09.03
Buying Guides
Buying from Japan

Rolex Reference Number Explained: How to Verify a Japanese Listing

The Rolex reference number explained for buyers sourcing from Japan: what each digit encodes, reference vs serial, and how to verify a pre-owned listing.
2026.09.02
Buying from Japan
Buying Guide

Seiko Reference Numbers Explained: Reading JDM & GS Codes

Seiko reference numbers explained for Japan buyers: decode JDM codes (SARB, SBDC, SBGA), map them to overseas SPB/SRP references, and verify before you buy.
2026.08.31
Buying Guide