Barnebys is the world's leading online search and valuation tool for artworks, antiques, and collectables. Barnebys co-founder Pontus Silfverstolpe gives us his expert opinion on five watches that are currently live at auction. Stop… hammer time! For more info, visit barnebys.co.uk
Top 5 luxury watches to buy at auction
If you like your watches rare and vintage, buying at auction is an easy way to boost your collection – and your purchases could clock up big money in the future, too

Patek Philippe (Calatrava, 2007)
This is a fine limited edition Calatrava, with a 'Soleil Bleu' dial from 2007. A stylish wristwatch and a timeless design. The beautiful deep blue colour would be perfect for summer linen suits. For more info, visit jewelry.ha.com

Rolex 18k gold watch (early 50s)
Rolex is one of the watchmaking industry's best-known names, and it is not without reason. Rolex is renowned for making watches that are both stylish and incredibly durable. I love the simple design of this Rolex from the early 1950s. It is suitable for both smart and casual dress – sleek but not flashy! For more info, visit jewelry.ha.com

Omega Mariage
Perhaps the most unique of wristwatches up for auction right now. A collection of five elaborately wrist-modified Omega pocket watches, complete with individually designed dials, and rich ornamental engraved parts. The collection is being auctioned with a delightful box made of fine wood, with a faceted glass lid. For more info, visit auktionshaus-zofingen.ch

Rolex (Steel GMT Master II, circa 2002)
This is a sportier, yet undeniably classic Rolex, Steel GMT Master II, circa 2002. This model is great for time away from the office, but still retains exquisite design and durability. For more info, visit jewelry.ha.com

Vacheron Constantin (1945)
Now this is a serious wristwatch. One cannot be anything but impressed by the amazing mechanics of the model – a 1945 showcase of Swiss watch art. For more info, visit kaplans.se