Watches can be sold across all eCommerce websites. Amazon and eBay are among the most reputable marketplaces, with a constant traffic flow. However, you are bound to face some stiff competitors. On the other hand, Shopify is great for long-term businesses that want a more personalized and unique look. Importantly, you don't have to choose, Shopify integrates seamlessly with Amazon and eBay, combining the benefits of a customized brand identity with the reach of established marketplaces. This way, you can expand your business while still keeping the original identity.