Reference Numbers

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

Credor Reference Numbers: What a Japanese Listing Shows (2026)

Credor has no public reference-number key. Verify a Japanese Credor listing with Seiko model lookup, caliber dating, and collection checks.

2026.10.12

Reference Numbers