Very nice watch! It has a sapphire glass. Waterproof till 100 mtr. The watchcase and strap are all made of stainless steel. The diameter is 40mm and the thickness is 12mm. The bezel turns only anticlockwise as it should with a diving watch. The recommended retail price of this watch is EUR 858,- so there is EUR 98,- discount on it. You can come to have a look at this and other (Davosa) watches in my shop. There is 2 years international guarantee on this watch from Davosa. The shop is owned by a watchmaker with over 30 years of experience in the business. Watches is my business. The Hands of Time, Voorburg.