2118 = 21mm lug width; 18mm buckle widthI'll try to get some more wrist shots up. I was the first reservation at Topper's for the Pilot. By the way Rob and Russ are AWESOME to deal with to say the very least. On a side note the strap on this watch haass the markings: 2118-704 and 115-80. I know the 115-80 is the length of each strap but what does 2118-704 stand for? I was thinking about getting a custom made strap for it.