The watch has come a long way, from being simply an instrument for measuring time with just moving gears and spring to technologically most advance gadget where telling time is the least of its function. Irregardless, these time pieces either set ones heart rates racing or monitoring it.
The strap currently available to fit the 42mm model. Measuring 24/20 (lug/buckle). For convenience sake, these straps come with the (aftermarket) watch adapters and buckle.
Straps can be sold without the adaptors to fit any watches with 24mm lug and 20mm buckle.