See your watch before you buy the parts
Pick five AliExpress parts, see which ones clash and preview the watch before you spend anything.Paste links to five AliExpress parts: movement, case, dial, hands and strap. We flag pairs that likely won't fit and render an AI preview of the assembled watch, so you can change your mind before you spend anything.
Point at a part to see where it sits and what the fit check compared.
4 parts fit1 to double-check
Parts are sold by AliExpress sellers, not by us. Our buy links are affiliate links: if you purchase through one, we may earn a commission at no extra cost to you.
From five links to one watch
The builder works with the listings you already have open.
Paste
Drop in a listing for each slot. AliExpress links pull in the product's variants, so you can pick the exact colour or size.
No links yet? Recreate a watch from a photo and we'll find the parts.
The five listing photos, as the sellers publish them
Check
We compare the listed measurements across your parts and mark anything that looks wrong as a Conflict or a Double-check.
Conflict22 mm strap, 20 mm lugs
Double-checkDate window position
Preview
We put your five parts together in one AI image of the finished watch. Sign in to make up to three previews a day.
Your parts
AI preview
An AI render from the real listings, not a photo of a watch that exists
Buy
Every part links to its listing. You check out with the seller on AliExpress; we never take payment.
Affiliate links: if you buy through one, we may earn a commission at no extra cost to you.
What the fit check compares
Specs are read from each listing, then compared pair by pair. Every issue is marked Conflict or Double-check, and nothing stops you from carrying on: you decide.
Measurements are read from listings by AI, and listings can be wrong. Parts you add by hand aren't checked. Confirm key measurements with the seller before you buy.
- Strap and lugs
- Flags a strap that is wider or narrower than the case's lug width.
- Dial and case opening
- Compares the dial's diameter with the case's dial opening, allowing 0.5 mm.
- Movement and case
- Flags a movement that won't seat in the case, or one that needs a spacer ring.
- Hands and movement
- Catches missing or extra GMT and chronograph hands.
- Date window
- Checks that the dial's window lines up with the movement's date wheel, or that the date is hidden.
- Crown position
- Notes when the movement has to be rotated to put the crown where the case expects it.
The fine print, up front
A preview is an AI render
It's an AI visualization of how your chosen parts could look together, not a photo of a watch that exists, and it can't prove the parts fit.
Flags, not guarantees
The fit check catches common mismatches from listing data. It can miss things, so treat a clean result as a good sign, not a promise.
You buy from AliExpress sellers
We don't sell parts, hold stock or process payments. Prices, shipping and returns are between you and the seller.
How we get paid
Our buy links are affiliate links. If you purchase through one, we may earn a commission. It doesn't change the price you pay.
Published builds stay put
Publishing saves your parts, preview and the prices at that moment as a snapshot. Anyone can open it, and signed-in builders can fork it.
Start your first build
Begin with five empty slots, or open someone else's build, fork it and swap a single part.