Quick Summary The Hamilton Khaki Field is now available in a limited edition collaboration with Call of Duty. When you think of a watch which has been especially designed for the battlefield, the Hamilton Khaki Field is an obvious pick. It's not hard to see why – the Khaki Field is the perfect easy-to-read timepiece, devoid of all frills and extravagances. Now, it gains an added spot of realism, as character Axel Vermaak sports the Hamilton Khaki Field in Call of Duty: Black Ops 7. €905 / US$1,060 / AU$1,605), this is a no-brainer for any Call of Duty fan seeking a cool addition to their wardrobe.