USD 0 HomeWatches PensExclusive OffersAbout usFAQ Frequently Asked Question What are Sapphire Crystals? Strictly speaking Sapphire crystals aren’t really Sapphire. The correct name for the material is corundum. Sapphire is used to describe the blue variety corundum, while ruby is used for the red variety.) A Sapphire crystal is a lab grown crystal that has the same properties as a Sapphire; which rate a 9 on the Mohs scale of hardness. Diamonds which are the hardest substance on earth rate a 10. This crystal is then cut and polished and placed as the lens of the watch to protect the hands and dial. Sapphire crystals, which are often coated with an anti-reflective substance, are the hardest lens used on watches and are very difficult to scratch. The time consuming and labor intensive process used to create and finish these crystals to exacting standards add to the rarity and value of a watch with a sapphire crystal. What is an Automatic movement? Automatic Vs. Quartz Movement? Who is ETA? How does a screw down crown work? What is a chronograph? How do I set the time? How do I set the Date? How do I set the Day? What type of warranty does Croton have? What if I need my watch sized? additional links? Can I get a diamond bezel? What is so special about Crocodile leather? What is so special about Ostrich leather? What is so special about Stingray leather? Aren’t Crocodiles, Ostriches and Stingrays endangered? What does Water Resistant mean? Can I shower or bathe with my watch? What is the difference between the terms “waterproof” and “water-resistant?” What does a Helium release (or relief) valve do? What is a Chronometer? What is a “Certified Chronometer”? What is the Mohs scale of hardness? CROTON GROUP 450 W Nyack Rd, West Nyack, NY 10994 Phone: 914-893-4111 Toll Free: 800-443-7639 Fax: 914-893-4222 Home Men's Collection Women's Collection Pens Exclusive Offers About Us FAQ Contact Us © 2019 Croton Watch Co Inc. All rights reserved.

USD 0 HomeWatches PensExclusive OffersAbout usFAQ Login To Croton If you have an account, please enter your email and password to continue. Username Password Sign In Forgot your password? Create account or CROTON GROUP 450 W Nyack Rd, West Nyack, NY 10994 Phone: 914-893-4111 Toll Free: 800-443-7639 Fax: 914-893-4222 Home Men's Collection Women's Collection Pens Exclusive Offers About Us FAQ Contact Us © 2019 Croton Watch Co Inc. All rights reserved.