I have recently ordered a GO Senator Hand Date model 39-58-02-02-04 from an AD in the US. The watch will be arriving in June, and I would like to order an additional aftermarket strap to use in the warm weather so I don't ruin the original croc strap. I can not seem to find the answer anywhere. I have received 3 different answers from 3 different AD's (19mm, 20mm, and "i dont know") The problem is because none of the AD's have the watch in stock. Would anyone happen to have this watch or know the lug width that GO uses on their 40mm senator cases? I appreciate any info or input. Thanks in advance.