Federal Act
on the Amendment of the Swiss Civil Code
(Part Five: The Code of Obligations)

¹ A con­tract of sale is a con­tract whereby the seller un­der­takes to de­liv­er the item sold and trans­fer own­er­ship of it to the buy­er in re­turn for the sale price, which the buy­er un­der­takes to pay to the seller.

² Un­less oth­er­wise provided by agree­ment or cus­tom, the seller and the buy­er are ob­liged to dis­charge their ob­lig­a­tions sim­ul­tan­eously quid pro quo.

³ The price is deemed suf­fi­ciently de­term­ined where it can be de­term­ined from the cir­cum­stances.