A private watch collection app, kept like a ledger.

Crown Quorum keeps the record of every watch you own: its papers, service history, condition, photographs, and documents. Private by default, and shared only when you choose.

What it keeps for each watch

  • Every watch, one record

    Maker, model, reference, year, case and movement, with the papers, receipt, and provenance notes that belong to it.

  • Service history that survives

    Dated service entries with the work done, the parts replaced, and the invoices behind them, so the history outlives the envelope it came in.

  • Condition, photographed

    Condition notes and photographs over time, so you can see how a watch has been kept rather than remember it.

  • Documents in one place

    Receipts, warranty cards, service papers, and valuations, stored with the watch they describe.

Who can see it

  • Private by default

    No public profile and no listings. Your desk is yours alone.

  • Serials stay masked

    Full serial numbers never appear in anything you share unless you choose to show them.

  • Share on purpose

    Send a redacted packet to a buyer, an insurer, or family, with only what they need to see.

  • Not a marketplace

    Nothing is listed, sold, or advertised from your records, and your data is never sold.

Common questions

Why not keep my collection in a spreadsheet?
A spreadsheet holds rows. The receipts, service invoices, and photographs end up somewhere else, and sharing the sheet shares everything in it. A desk keeps each watch's documents with its record and lets you share one redacted packet at a time.
Does Crown Quorum value or authenticate watches?
No. It keeps your records. Valuations come from a qualified appraiser, and authentication from the maker or a specialist.
Can I ask about my collection from ChatGPT?
Yes. You can connect your desk to ChatGPT to ask which records still have gaps. The connection only reads: it never changes, shares, or sends anything.
Read the guides to keeping watch records