How It Works
OpenCase Vintage uses AI to find the right watch parts across multiple marketplaces — so you don't have to search each one manually.
Describe the part you need
Type a natural language description — movement name, brand, calibre, part type, dimensions. For example: "ETA 2824-2 mainspring" or "Seiko NH35 crown".
AI normalises your query
Our Query Normalizer agent extracts brand, movement, part type and dimensions from your description and identifies compatible movements — so you see parts that fit even if sellers use different terminology.
Multiple marketplaces searched in parallel
eBay, AliExpress, Esslinger, Cousins UK, Jewelers Supplies — all searched simultaneously. Results stream in as each source responds.
Each listing is evaluated for relevance
The Listing Evaluator agent scores every result for correctness and compatibility — filtering out irrelevant listings and surfacing high-confidence matches at the top.
Save searches and get alerts
Can't find what you need today? Save your search and set a daily or weekly alert. We'll notify you by email whenever new matching listings appear.