Michael Kors Nia MK3990 Women's Watch. Polished, glamorous, and effortlessly stylish — the Michael Kors MK3990 makes accessorising easy. From the Nia collection, the MK3990 measures 38 mm — sized to make a statement while staying elegant.. Water resistant to 5 ATM / 50 m — rain, hand washing, and everyday splashes won't be an issue. The stainless steel bracelet adds weight, durability, and a premium feel on the wrist. The rose gold tone tone adds a warm, luxurious accent that catches light beautifully.. Specifications. Brand. Michael Kors. Model. MK3990. Collection. Nia. Gender. Women. Band Colour. Rose Gold Tone. Band Material. Stainless Steel. Case Colour. Rose Gold Tone. Case Diameter. 38 mm. Case Thickness. 8 mm. Case Material. Stainless Steel. Dial Colour. Rose Gold. Movement. Quartz. Chronograph. No. Water Resistance. 5 ATM / 50 m