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xchwarze
·Hi all,
Quick update on a community movement database I run. The big decision recently was structural: I split it into two databases with different focuses but shared relations - a caliber encyclopedia (movement specs, families, manufacturers) and a parts catalog (spares, references, interchange), linked so you can go from a caliber to the parts that fit it. On top of that I've been building tools aimed squarely at watchmakers, and I'd like your take on them.
Built around how a watchmaker actually works:
🔍 Know the movement before you open it
Full caliber specs - dimensions (mm + lignes), height, jewels, frequency, lift angle, escapement / winding / rotor type, shock protection, complications, and more. Plenty of Omega in there - the 56x family, 86x, 1010/1011, 1120, and so on.
🔧 Find the part - and one you can still buy
For any caliber you get the spare parts that fit, grouped by type (mainspring, balance, barrel…). Discontinued parts are automatically collapsed onto their current replacement, so the list shows what you can actually order today instead of a dead reference. Open any part to see every caliber it fits, its manufacturer-stated equivalents, and the full supersession chain.
♻️ Source a donor when the part is NLA - the Shared-Calibers Explorer
The one I think you'll get the most out of. From any caliber it ranks other calibers by how many parts they share, with two numbers:
Movements that are essentially the same base ébauche get flagged "likely same base." When the exact reference is unobtainium, this points you straight at a donor or an interchange part instead of guessing.
⏱️ Set up the timing machine at a glance - Timegrapher card
Every caliber now surfaces the two numbers you need on the timegrapher: lift angle and beat rate (bph + Hz), with a quick reference for healthy amplitude and beat-error ranges. No more digging through a spec sheet mid-service.
🗂️ Search the whole parts catalog
Browse by part type, manufacturer, or caliber, and toggle discontinued items in or out.
🕵️ Identify an unmarked movement
No legible caliber number? Narrow it down by size, height, jewels, shape, frequency and complications. Supporters also get experimental filters built from finer physical traits: Import Codes, Balance Support Type, Hairspring Stud Type, Stem Release Position - the details you can read off the movement when the number's gone.
👥Community side: anyone can submit a new caliber or propose corrections; moderators review before it goes live. There's an official Discord for data corrections and photos.
The encyclopedia and specs are free to browse. The deeper parts/interchange tools sit behind a small supporter tier that keeps the lights on.
I'd really appreciate watchmakers poking at the parts/interchange data and telling me where it's wrong or thin - that's how it gets better. Corrections and missing-caliber reports very welcome.
Some images
Quick update on a community movement database I run. The big decision recently was structural: I split it into two databases with different focuses but shared relations - a caliber encyclopedia (movement specs, families, manufacturers) and a parts catalog (spares, references, interchange), linked so you can go from a caliber to the parts that fit it. On top of that I've been building tools aimed squarely at watchmakers, and I'd like your take on them.
Built around how a watchmaker actually works:
🔍 Know the movement before you open it
Full caliber specs - dimensions (mm + lignes), height, jewels, frequency, lift angle, escapement / winding / rotor type, shock protection, complications, and more. Plenty of Omega in there - the 56x family, 86x, 1010/1011, 1120, and so on.
🔧 Find the part - and one you can still buy
For any caliber you get the spare parts that fit, grouped by type (mainspring, balance, barrel…). Discontinued parts are automatically collapsed onto their current replacement, so the list shows what you can actually order today instead of a dead reference. Open any part to see every caliber it fits, its manufacturer-stated equivalents, and the full supersession chain.
♻️ Source a donor when the part is NLA - the Shared-Calibers Explorer
The one I think you'll get the most out of. From any caliber it ranks other calibers by how many parts they share, with two numbers:
- Donor % - how much of this movement's parts another caliber can supply.
- Overlap % - how interchangeable the two movements are overall.
Movements that are essentially the same base ébauche get flagged "likely same base." When the exact reference is unobtainium, this points you straight at a donor or an interchange part instead of guessing.
⏱️ Set up the timing machine at a glance - Timegrapher card
Every caliber now surfaces the two numbers you need on the timegrapher: lift angle and beat rate (bph + Hz), with a quick reference for healthy amplitude and beat-error ranges. No more digging through a spec sheet mid-service.
🗂️ Search the whole parts catalog
Browse by part type, manufacturer, or caliber, and toggle discontinued items in or out.
🕵️ Identify an unmarked movement
No legible caliber number? Narrow it down by size, height, jewels, shape, frequency and complications. Supporters also get experimental filters built from finer physical traits: Import Codes, Balance Support Type, Hairspring Stud Type, Stem Release Position - the details you can read off the movement when the number's gone.
👥Community side: anyone can submit a new caliber or propose corrections; moderators review before it goes live. There's an official Discord for data corrections and photos.
The encyclopedia and specs are free to browse. The deeper parts/interchange tools sit behind a small supporter tier that keeps the lights on.
I'd really appreciate watchmakers poking at the parts/interchange data and telling me where it's wrong or thin - that's how it gets better. Corrections and missing-caliber reports very welcome.
Some images
