Sector is an Italian watch brand, which was created in 1973 by the Giardiello family, in Naples, Italy, then also owners of Philip Watch.

The company was established in Neuchâtel, Switzerland. In 2001, it passed ownership to the Opera Group (Bvlgari) and moved headquarters to Lugano, canton of Ticino, Switzerland. It is now owned by the Morellato & Sector S.p.a, (manufacturers of jewellery), in Fratte di Santa Giustina in Colle (PD), Italy, and is no more active in Switzerland.