Mercado de Relógio is a private community for people who appreciate watches, bringing enthusiasts, buyers, and sellers together to share knowledge and connect. Members can join for free to take part in conversations, explore curated content about watch models, movements, design, and history, browse pre-owned listings, and send proposals to advertisers. Transactions are negotiated directly between members; the platform does not handle sale payments or charge commissions.

The service offers free, Premium, and Black membership plans. Paid plans provide commercial features such as active listings, photos, and the ability to receive proposals, with Black membership adding enhanced listing visibility and records of negotiation conversations. Identity verification is required for advertising and certain paid campaigns, but not for joining and using basic community features. Members can also participate in campaigns, follow their entries and results, and access support, moderation, safety guidance, and private account features. The community describes itself as independent and unaffiliated with the watch brands mentioned or shown.