Citizen Promaster pilot watch is clean. Where is NOS in Position. - Press the bottom right (bottom) button to select the SET panel. Resets the clock - Use the lower left button (by pressing) to select the word UTC. - Press the PUT (risk button) lower right button. - Clamp on both the lower left and top right upper part. When the clock starts again, all display symbols will be displayed. - And then you bring your hands (hours and minutes) to zero positions in the UTC (top) panel. Tips for assigning button actions will be displayed on the lower panel and the variable parameter (above) at the top. - Exposed - press the lower right button. Zero position set. Detailed information is available on the Internet at model number ... Model C300-E80044 C300 Motion Sky Navihawk World Time Chronograph Production Japanese Quartz Movoment Red Arrows Case diameter 42 / incl. 42 mm incl Steel Cord 100 M Waterproof 3 Different alarms The product is shipped by DHL Cargo. Shipping charges are calculated by including special packing since it is fast shipment. The cargo arrives the buyer the 3 days.