This is the small model essence. The size is 32mm diameter (without the crown) and thickness 8mm. This watch is made out of a bio degradabke plastic. The strap is made from natural rubber. The watch has a mineral glass. To complete the green theme of this watch it also has a packaging made from recycled PET bottles. he watch has a Swiss quartz (battery) movement. This watch is new. You will recieve 2 years guarantee on it.