Produced by TW .Latest masterpiece: Rolex Rolex RZ1 Sunday Calendar Type 40mm 21st Century Series Watch Log 40mm .1. Classic 904L case with polished finish .2. Dial material: Scratch resistant blue sapphire crystal, anti reflective convex magnifying 2.5x date window .3. Bracelet features electro nano plating technology with curved five link design .4. Clasp type: Folding clasp with concealed folding crown .5. Equipped with imported movement, the best luxury gift recommendation. Please recognize TW s exclusive quality.