Hi Bill

Thanks for your purchase. The fact that the warranty card is not filled out is not a problem. Just write Ashford and the date of purchase where indicated. You can test for accuracy by setting the watch to a time signal, using the 'hack seconds' feature of pulling the crown out all the way, then pushing it back in when the time syncs. Give the watch about 4-6 weeks as a 'break in' period, before determining final accuracy.