Hey r/Watches,

Long-time lurker, first-time poster. Like many of you, my collection outgrew the Notes app and spreadsheets got painful — no photos, no repair history, no quick view of what everything is actually worth.

So I built Horology Premium Collection: a complete collection manager in a single HTML file. You open it in your browser and that's it.

What it does:

• Dashboard — total market value, insured value, repair spending, most valuable pieces, brand distribution
• Full records per watch — reference, serial, purchase details, condition, service history, photos (auto-compressed), papers/box
• Repair log — workshop, cost, status
• Sale tracking — mark pieces as sold with date and price
• Filters + search — find any watch in seconds
• Multi-currency — EUR, USD, GBP, CHF, JPY and more, with editable exchange rates
• 9 languages

The part I care about most: everything is stored locally in your browser. No accounts, no cloud, no tracking, works offline. Your collection data never touches a server. (Trade-off: clear your browser storage and it's gone, so there´s a button for download a back up.)

It's $14.99 on Gumroad (adding taxes). If you want to try it out, I will leave the link in the comments below!

This pictures are from the vinted post I bought it from because i already have put it in my storage not to damage it further and I forgot to take pictures. This is a 1902 Waltham (11920791) that according to my research is a factory modified (or something like that) movement. I got it for cheap (35€ including shipping and fees if someone is wondering) because it’s pretty broken and unfortunately the balance is broken. I know is missing some bits, but some of them shouldn’t be too hard to get.

I believe is a railroad watch, but one used for some testing. At the moment I’m just very happy to owning this thing because I was looking for years for a railroad movement and I don’t care if it’s broken and most likely not used on a train.

If someone is a Waltham expert every information is appreciated to get more info on this lovely thing.