This is the big model simply elegant 41 The size is 41mm diameter (without the crown) and thickness 7mm. It is a very thin watch. The watchcase is made out of stainless steel. The strap is made from leather. The watch has a sapphire glass. This also explains why it is more expensive. The Sapphire glass is harder and difficult to get a scratch on it. So the watch stays beautifull much longer. The watch has a Swiss quartz (battery) movement. This watch is new. You will recieve 2 years guarantee on it.