The difference between OEM and ODM watches lies in who enjoys the intellectual property rights of the product.
If the client enjoys the intellectual property rights of the product, it is OEM watches.
If the overall watch design is carried out by the producer, it is ODM watches.
If you choose OEM watch option,please make sure you will sign an NDA to protect your intellectual property.then your watch manufacturer can’t produce the same style watch for others and they can’t leak your design or information to others.then your watch design won’t spread in the market.
Because you don’t spend money and time on the watch development process and your watch design patent belong to the watch producer,then your watch may be similar to your competitors.
Your customer will be confused about that similar look.And if your retail price is higher than your competitor’s price,then the customer will tend to lower products.