Watches of Switzerland debuted on the London Stock Exchange on Thursday and saw its shares rise by 15%.
The company was valued at £647 million after setting a share price of 270p. The stock started at 295p and rose to as high as 315p.
“Today marks the next phase in our growth story,” Brian Duffy, group CEO, said: “I am delighted by the reaction we have received from the market to our business and the significant opportunities that lie ahead.
“On behalf of all our colleagues, I look forward to welcoming our new shareholders to the business and to working with them as we continue to execute on our growth strategy."