Accessible online, the Jaeger-LeCoultre and Ebel timepieces will feature in separate auctions at the end of the month.
The top lot is a Patek Philippe platinum minute repeating Perpetual Calendar Tourbillon Wristwatch.
A Rolex 'Paul Newman' became the auction's top lot when it fetched nearly $800k.
Set to be hosted on December 6, the auction offers a curated selection of 160 lots which are predominantly fresh to market.
The sale will include a never before publicly seen Rolex Submariner which is expected to go for in excess of $500,000.
The auction will be led by Bonhams’ international director of watches, Asia, Tim Bourne and director of watches in Asia, Sharon Chan.
The watch was last sold for a record breaking CHF 2.2m in 2006.
The site is the brainchild of 30-year TV-shopping veteran, Marvin Segel, and UX entrepreneur, Domenick Propati.
Almost 600 bids placed on 48 luxury timepieces as registered users embrace online purchasing opportunity.
The auction, set to be held later today, will feature goods worth up to $460,000.