Software for a trade that runs on trust and detail
A watch is a serial number, a service history, a purchase invoice and a margin. Software that treats it as a product with a price loses all four, and the dealer spends their week putting them back.
Hound and Hunter
1892
Winslow Homer
Why it exists
The gap was never a lack of marketplaces.
- The stock was already digital
- It was already in five places at once: a marketplace, a web shop, a spreadsheet of costs, a folder of photographs and a phone full of messages. None of them agreed.
- The cost of that is double-selling
- A watch sold in the showroom on Friday and still live on two marketplaces on Monday is not an administrative annoyance. It is a canceled order, a damaged rating and a buyer who goes elsewhere.
- So the watch has to live in one place
- Worldwatch is that place. The marketplaces read from it, never the other way round. Everything else follows from that.
Who runs it
Stan Duin, founder. He ran VintageMasters, a vintage watch dealership, before building Worldwatch, and still trades. The idea came out of his own phone: hundreds of watches offered in WhatsApp groups with no order to any of it. He built the first version to organize those chats, dealers asked when they could move their whole stock in, and the product followed.
He also worked at Tesla, where he saw the answer already working. The car trade moves stock between dealers without anyone retyping it, and knows what every car cost and what it is worth today. That market is roughly twenty years ahead of watches. Worldwatch is an attempt to close that gap in a great deal less than twenty years.
How it started
Four years, from one dealer’s own stock to the software a trade runs on.
August 2024
The first line of code
Worldwatch began as a way for one dealer to organize his own stock. Hundreds of watches were being offered in WhatsApp groups with no order to any of it, and ten browser tabs open to keep them listed across platforms.
2024
Worldwatch.market B.V. is registered in Groningen
Chamber of Commerce number 98632329. One product, for one trade.
Spring 2025
Work starts on the dealer marketplace
The half of the trade nobody had structured: not another shop window, but how one dealer comes to see and trust another, and how stock moves between them.
1 July 2025
The first dealers went live
Real stock, real orders, and the first week where a watch existed in exactly one place.
20 September 2025
Worldwatch launched publicly
At its own launch event, after ten weeks of running quietly with the dealers who went first.
October 2025
MONOCHROME wrote it up
“For Professionals Only: A Brilliant New Approach to the Global Watch Trade.”
November 2025
eBay and Shopify
The first two channels a listing could reach from one record. A watch sold anywhere came down everywhere, which is the whole reason for connecting them.
February 2026
WooCommerce
For the dealers whose shop is their own WordPress site rather than a platform.
April 2026
Wristler, Bezel, and the reports
Two more marketplaces, and the first view that answered what the stock was actually doing: what sold, what did not, and what each watch really cost.
July 2026
Rebuilt around one record per watch
Inventory, listings, the marketplace, acquisitions, margins, tax, contacts and the handover to the accountant, all reading from one record. Shipped with it: a full administration export, per-listing tax treatment, and the interface in thirteen languages.
The company
- Worldwatch.market BV
- A Dutch private limited company based in Groningen. Chamber of Commerce number 98632329, VAT number NL868577091B01. One product for one trade.
- How to reach us
- The team is small and answers its own email. Dealers write to us directly and we reply in business hours.
- Languages
- The product and this site work in 34 languages, because the trade is cross-border and a dealer should not have to work in someone else's.
