Switching watch manufacturers is riskier than switching most other suppliers. Your molds, your movement specs, and your water-resistance certification are all tied to one factory. Get the move wrong and you can lose stock for months.
Based on our experience manufacturing watches in Dongguan since 2009 for brands in 30+ countries, switching suppliers is the single highest-risk moment in a watch brand supply chain. Your molds, movement specs, and water-resistance certifications are all tied to one factory. We have seen brands lose 3-6 months of selling time to a botched transition — and the difference between a smooth switch and a costly one is almost always preparation. Sampling fees start from about $500 per style, and this production line MOQ is typically 100–300 pieces at about $18–35 per unit for quartz — a baseline for comparing factory quotes during the transition.
This guide walks you through the switch step by step — what to check before you commit to a new factory, what can go wrong, and how to keep orders shipping while you make the change.
Most brands don’t leave a factory on a whim. Four problems usually push the decision:
Quality that keeps slipping. Cases scratch easier than they used to. Dial printing goes slightly off-register. QC reports say “pass” but returns say otherwise.
Pricing that keeps climbing. Your factory raises unit costs every renewal, and the increases stop matching material costs. You ask why. The answers get vaguer each time.
Communication that wastes your time. Emails sit for four or five days. Sample photos don’t match what you asked for. You end up flying out just to get a straight answer.
Capacity that can’t keep up. Your orders have grown past what this factory can comfortably run, and lead times are stretching because of it.
There’s a fifth reason that shows up less often but hits harder: your factory stops picking up small custom requests. Maybe you want to test a new dial finish, or add a limited-run colorway. A factory that’s grown past your order size will quietly deprioritize anything that isn’t your standard SKU, because it’s not worth their line time.
Look at the pattern, not one bad batch. If quality issues, price increases, or communication problems show up across three or more consecutive production runs, that’s a pattern worth acting on rather than a rough quarter.
Four risks matter more than in most categories: who owns your molds (check your contract before you tip your hand), whether the new factory can source and fit your exact movement model, water resistance needing full re-testing, and your current factory deprioritizing your orders once it senses you’re leaving.
A full, safe transition typically runs 2 to 6 months: quiet evaluation 2-4 weeks, trial batch 3-6 weeks, mold and spec transfer 2-4 weeks, and phased volume shift 6-12 weeks. Simple non-customized designs land at the shorter end.
No. Wait until your new factory has passed the trial batch and molds are transferred. Telling your old factory early gives them time to slow-walk your remaining orders, with nowhere else for you to turn.
If your product roadmap depends on flexibility, that’s a signal too.
If any of these sound familiar, you’re probably already looking at other suppliers. Before you go further, it’s worth reading how to evaluate a new watch manufacturer so you’re comparing candidates on the right criteria — not just price per unit.
Generic manufacturing advice about switching suppliers doesn’t cover what’s specific to watches. Four risks matter more here than in most other product categories.
Case and dial molds are usually built specifically for your design, and your current factory paid part of the tooling cost — or all of it, depending on your contract. That doesn’t automatically mean you can walk out with them.
Before you plan a switch, check your contract for two things: who legally owns the molds, and whether the factory has the right to refuse to release them. Some factories treat mold release as leverage in a dispute. Get this answered in writing before you tip your hand.
Your case is machined to fit one movement — the exact model, from the exact supplier you’ve been using. A new factory switching you to a different movement supplier, or even a different model from the same brand, can mean the case, crown, and stem no longer line up.
Ask any factory you’re evaluating to confirm, in writing, that they can source and fit your exact movement model. If they can’t, you’re not just changing factories — you’re redesigning your case.
Water resistance isn’t a spec you carry over. It’s tested on the finished product from a specific assembly line, with that line’s specific gasket sourcing and pressure-testing process. A new factory means a new round of testing — usually 3ATM, 5ATM, or 10ATM verification, run again from scratch, even if nothing about your design changed.
Skip this step and you’re shipping watches with an untested claim on the case back.
The moment your current supplier senses you’re shopping around, their incentive to prioritize your orders drops. This shows up as slower replies, “unexpected” material delays, or QC issues that suddenly appear on your last few purchase orders. It’s not universal, but it’s common enough that you should plan for it rather than hope it won’t happen.
Here’s the sequence that keeps your shelves stocked while you make the move.
Step 1: Evaluate the new factory quietly.
Do this before your current supplier has any idea you’re looking elsewhere. Request samples under a generic project name if needed. Before you commit, audit a new factory the same way you’d audit any major supplier — production capacity, QC process, and mold-making capability all need to check out first.
Step 2: Run a small trial batch.
Order 50 to 200 units before you commit to a full production run. This is where movement-fit and water-resistance problems surface — while the stakes are still low.
Step 3: Hand over molds and specs formally.
Once the new factory passes your trial, arrange the mold transfer through a written agreement, not a verbal handshake. List every mold, every tech drawing, and every material spec by name. If your old factory owns the tooling, negotiate a buyout or a duplicate-mold arrangement before you announce anything.
Step 4: Move production in phases.
Don’t cancel your old factory’s orders all at once. Shift 20% to 30% of your volume to the new factory first. Confirm three consecutive batches meet spec before you shift more. This protects you if the new factory’s quality control isn’t as consistent at full volume as it was on the trial batch.
Rushing a factory switch is how brands end up with a warehouse of unsellable stock. A full, safe transition typically runs 2 to 6 months, depending on how customized your watches are.
| Phase | Typical Duration | What Happens |
|---|---|---|
| Quiet evaluation | 2–4 weeks | Sourcing, sample requests, initial audit |
| Trial batch | 3–6 weeks | Small run, movement fit check, water-resistance testing |
| Mold and spec transfer | 2–4 weeks | Legal handover, tooling duplication if needed |
| Phased volume shift | 6–12 weeks | Gradual order shift, batch-by-batch quality checks |
Simple, non-customized designs land at the shorter end. Complex builds — unusual case shapes, proprietary dial finishes, custom movement modifications — take longer, mostly because mold duplication and re-testing take longer to get right.
The one mistake to avoid: cutting your old factory off before the new one has proven three clean batches in a row. That gap is where stockouts happen.
A clean handover doesn’t guarantee a clean relationship afterward. How you communicate in the first few months sets the pattern for the next few years.
Three habits make the difference:
If you’re not sure how to structure this from day one, this guide to communicating with watch factories walks through the cadence and documentation habits that prevent most of the back-and-forth that wastes time later.
Q: How do I know if it’s actually time to switch factories, versus just having a rough quarter?
A: Look at the pattern, not one bad batch. If quality issues, price increases, or communication problems have shown up across three or more consecutive production runs, that’s a pattern worth acting on.
Q: Can I run two factories at once permanently, instead of fully switching?
A: Some brands do exactly this — splitting volume 50/50 between two qualified factories to reduce risk. It costs more to manage but removes the single-point-of-failure problem entirely.
Q: What happens if my old factory refuses to release the molds?
A: This is why the ownership question needs answering before you start the switch, not after. If ownership is unclear in your contract, get a lawyer to review it before you notify the factory you’re leaving.
Q: Should I tell my old factory I’m leaving before the new factory is ready?
A: No. Wait until your new factory has passed the trial batch and molds are transferred. Telling your old factory early gives them time to slow-walk your remaining orders, with nowhere else for you to turn.
Switching watch manufacturers doesn’t have to mean a gap in your supply chain. Evaluate quietly, test small, transfer formally, and shift volume in phases — and you keep shipping the whole way through.
If you’re evaluating a new manufacturing partner right now, HTIMES’ watch manufacturing services cover everything from mold-making and movement sourcing to water-resistance testing, so your transition doesn’t start with a redesign.
Sources: Watch (Wikipedia) – Federation of the Swiss Watch Industry