The IWC Mark XV came out in 1999, taking over from the Mark XII. Its case was a bit larger at 38mm and it had an ETA movement (either 37524 or 30110 depending on the year). You could get it with a black or white dial, or a 'Spitfire' black or silver option. The reference IW3253-10 model has a White dial. The original strap (in black buffalo) has reference numbers A05510, A05512 (XS), or A05511 (XL), while the original bracelet has reference number A05514.