ryuzuwatches

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.
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.
Buying from Japan

Watch Warranty and Servicing After Buying from Japan: What Transfers

Buying a watch from Japan? The warranty rarely transfers home. A 2026 guide to what transfers for Grand Seiko, Omega and Seiko, plus servicing and parts supply.
Buying from Japan

Is Buying a Watch from Japan Still Worth It in 2026? Landed-Cost Math

Is buying a watch from Japan still worth it in 2026? We break down the landed cost — price, fees, shipping, duty and VAT — so arithmetic decides.
Buying from Japan

Proxy Service Watch Buying: Is Buyee Safe or Not?

A proxy service like Buyee or ZenMarket forwards your watch but excludes authentication and dispute recourse by its own terms, and how inspected sourcing differs.
Buying from Japan

Japanese Watch Condition Grades Explained: 未使用, N, AB, C & ジャンク

Japanese watch condition grades decoded: what 未使用, N, SA, A, AB, B, C and ジャンク mean on Yahoo Auctions and Mercari, and why grades are seller-defined, not standard.
Buying from Japan

Buying a Watch from Japan in 2026: Taxes, Duties & De Minimis

The tax-and-duty math of buying a watch from Japan: consumption tax, import duty, VAT, US de minimis, and the new postal-entry rules for mail shipments.