As one of its daily deals, Amazon offers the Timex Digital Expedition Watch, model no. T499009J, for $34.71. Coupon code "DAY7TIMEX" cuts it to $20.83. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $4.48.) That's the lowest total price we could find by $18. It features digital display, quartz movement, mineral crystal, and water resistance up to 165 feet. Deal ends today.

Orders are guaranteed to arrive in time for Christmas via Prime shipping.