Buying Guide

H. Moser & Cie Reference Numbers: Verify a Japanese Listing (2026)

H. Moser reference numbers run XXXX-YYYY, and the first digit is the collection. Decode an H. Moser serial number question and verify a Japanese listing remotely.

2026.10.01

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.

2026.09.30

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.

2026.09.30

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.

2026.09.29

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.

2026.09.28

Buying Guide

Franck Muller Reference Numbers: Verify a Japanese Listing (2026)

A Franck Muller reference number is a case-size code plus feature letters (SC, DT, CC), not a model year. Here is how to decode one and verify a Japanese listing.

2026.09.25

Buying Guide

US Import Duty on a Watch from Japan: Part-by-Part (2026)

US watch import duty from Japan, broken down by part (movement, case, bracelet, battery) and the new postal entry rules through January 2027.

2026.09.16

Buying Guide

Is a Pre-Owned Rolex from Japan Certified? RCPO vs Japan Market (2026)

A pre-owned Rolex from Japan is authentic but not RCPO-certified. Japan has just one RCPO retailer — see the 2026 premium data and what substitutes for the seal.

2026.09.08

Buying Guide

Japanese Watch Marketplaces: Yahoo Auctions vs Mercari vs Rakuma

Japanese watch marketplaces compared: Yahoo Auctions, Mercari, and Rakuma — what each is good for, and why buyer protection barely reaches an overseas buyer.

2026.09.01

Buying Guide

How to Authenticate a Watch When Buying from Japan in 2026

How to authenticate a watch from Japan when buying remotely: what photos and a serial number can prove, and the one step that actually verifies it.

2026.08.31

Buying Guide