This fine Thomas Earnshaw Holborn automatic watch is just what you need to get you through the day. Roman numerals let you know exactly what time it is no matter where you are, keeping you ready for whatever the day has in store. The open heart dial lets you see exactly what your watch is made of and offers a unique design. With water resistance up to 50 meters, you can go for a swim without worry. This watch offers an sleek and polished look that pairs well with all of your favorite outfits so you always look your best no matter the occasion. The dial diameter of this watch is 40 mm.