Sellita

Sellita (Sellita Watch Co. SA) is a Swiss manufacturer of mechanical watch movements based in La Chaux-de-Fonds. Founded in 1950, Sellita operated as one of ETA's major outsourced assembly company for their movements until 2003. Since then, it has been developing its own movements based on ETA calibers with expired patent rights and has managed to become one of the main movement manufacturers of the Swiss watchmaking industry.
Movements.
Hublot, IWC, Lilienthal Berlin, Oris, Raymond Weil, Sinn, and TAG Heuer are amongst the brands that utilize Sellita's movements or slightly modified versions to power their watches.