The Tissot model T1374072103100 has a 40 mm diameter and approximately 10.9 mm thickness, crafted from 316L stainless steel with a rose-gold PVD-coated case, and features a see-through caseback. https://saicreationswatches.com/products/t1374072103100-tissot-unisex-t-classic-prx-powermatic-80-watch-for-men