https://www.reuters.com/article/us-chronext-ipo/swiss-watch-trader-chronext-plans-stock-market-listing-sources-say-idUSKCN2CY0XT >Switzerland's Chronext is preparing an initial public offering (IPO) that could value the online marketplace for new and pre-owned luxury watches at up to 1 billion euros ($1.2 billion), people close to the matter said.