Hamilton Khaki Field Quartz

Giancarlo Giannini as René Mathis wears a Hamilton Khaki Field watch in the movie Quantum of Solace (2008).

The Hamilton watch in the film is the Hamilton Khaki Field H684410 Quartz version, ref. number H68411553 (or H68411253, read WUS forum discussion). That model is not available anymore, and currently modelnumber H70455553 Automatic is the most similar in design.

In some pictures from the film the case does look more like a titanium case or at least a matte steel case as seen on the Quartz watch mentioned earlier, and not as shiny as the now standard (brushed) steel case. 

The dial shows 12 and 24 hours markers and has a date window at the 3 o'clock position.

The watch has a brown leather strap with white stitching, currently available under ref. H6007041041.

The good looking watch has military inspired features. The bold looks, a rugged and robust case and strap and a movement with 80 hours power reserve.

René Mathis wears the watch in his villa in Italy, when Bond visits Mathis to ask him to go to South America. The beautiful location is Villa Le Torre, Talamone in Southern Tuscany, Italy.

Alternative
This Hamilton Khaki Quartz watch is not available anymore, but the very similar (but Automatic) Hamilton Khaki Field Automatic H70455553 watch is available at Hamilton ($575) or at JomaShop for $399 (sale price, January 2021) or you can look on eBay for new and old Hamilton Khaki Field watches.

With thanks to Thunderballs for the top photo