Proozy offers the Jack Mason Men's 42mm Aviator Watch in Stainless/Black/Olive Green or Gunmetal/Grey/Olive Green for $79.99. Coupon code "DN64" cuts that price to $64. With free shipping, that's the lowest price we could find by $36. It features a stainless steel case, quartz movement, and water resistance to 330ft. Deal ends April 9.