authentication

Bell & Ross Reference Numbers: Verify a Japanese Listing (2026)

Bell and Ross publishes no reference number key. This guide decodes the collection, complication, and color blocks and shows how to verify a Japanese listing.

2026.11.05

Reference Numbers

Jacob & Co. Reference Numbers: Verify a Japanese Listing (2026)

Jacob and Co publishes no reference number key. One part of the model number is decodable, and this guide shows how to verify a Japanese listing with it.

2026.10.29

Reference Numbers

Montblanc Reference Numbers: Verify a Japanese Listing (2026)

Montblanc has no public reference-number decoder. Here is what the 6-digit catalog number, the caliber code, and the serial actually prove before you buy from Japan.

2026.10.21

Buying from Japan

AI Watch Authentication in 2026: What It Can and Can’t Prove

AI watch authentication in 2026: what eBay, Chrono24 and photo apps actually verify before you pay a private Japanese seller.

2026.10.12

Buying from Japan

Universal Geneve Reference Numbers: Verify a Japanese Listing (2026)

Universal Geneve has no official reference number key. This guide shows what actually dates a vintage Polerouter: serial ranges, caliber, and redial tells.

2026.10.09

Buying Guides

Hublot Reference Numbers: Verify a Japanese Listing (2026)

Decode Hublot reference numbers block by block — model family, case material, movement — and confirm a Japanese pre-owned listing matches what it claims.

2026.10.08

Buying Guides

Yahoo Auctions Fake Watch: Japanese Words That Mean ‘Not Genuine’

Searching for Yahoo Auctions fake watch Japanese words? NCNR and ジャンク do not mean fake by themselves. This guide shows what the phrases really avoid claiming.

2026.10.08

Buying from Japan

NOMOS Glashütte Reference Numbers: Verify a Japanese Listing (2026)

NOMOS Glashütte reference numbers group by model family, not one universal code. See the blocks, read one reference end to end, and verify a Japanese NOMOS listing.

2026.10.04

Buying from Japan

Parmigiani Fleurier Reference Numbers: Verify a Japanese Listing

Decode a Parmigiani Fleurier reference number from a Japanese listing: the PFC/PFH three-block format, the case-metal digit, and what to check before you buy (2026).

2026.10.02

Buying from Japan

Glashütte Original Reference Numbers: Verify a Japanese Listing

Read a Glashütte Original reference number from a Japanese listing in 2026: a segment-by-segment decode, a real-reference table, and where the serial is engraved.

2026.10.01

Buying from Japan