THESE PARTS FOR SALE ARE AN AFTERMARKET MOVEMENT REPLACEMENT PARTS.THESE PARTS ARE MADE FOR ROLEX PRESIDENT 3155 MOVEMENT. IT WILL WORK ON 3155 MOVEMENT – MODEL / CASE NUMBERS : 18238 18248 18239 18249 Your Choice : 1 : 3155 Part 127 Bridle and 166 Screw For Case2 : 3155 Part 270 Cannon Pinion3 : 3155 Part 280 Hour Wheel 4 : 3155 Part 600 Date Indicator Seating (RED CIRCLE SHOWS SOME LIGHT CORROSION.)5 : 3155 Part 618 Day Jumper ( SOME RUSTICS )6 : 3155 Part 626 Date Finger 7 : 3155 Part 635 Cam Yoke Spring “These 3155 Replacement Movement parts are NOS and unused from late 1990’s. In Good condition with some storage sign and light scratches, patinas and rustic. Please enlarge the photos for the detail of condition. Listing price is only for 1 piece. Sold As It. Please read my feedback on the watch parts I have sold and buy it with confidence.Please be free to ask if you have any questions on the item. Thank you for your business.