[Steve]

According to Suunto the X6HR extension band should work.
http://www.suuntowatches.com/36bands.htm

	Suunto Visit SuuntoWatches.com to see Suunto's full line of wrist top computers and compasses.

	Suunto X6 HR - Click for more info Just when you thought a sports watch couldn't get any better, Suunto introduces the X6 HR, X6 HRM and X6-HRT. These are truly the next generation in sports watches, packed with all of the technology that Suunto enthusiasts have been craving. Designed for Cross Sports applications, the X6 writstops are functionally very similar to the Suunto X6 - but with the added benefits of a heart rate monitor.

	Suunto Bands - Click for more info The range of Suunto Core Acessory Straps include the six straps as found on the various Suunto Core wristop computer models as well as three additional straps. All straps are compatible with every Core model, allowing you to custom-tailor your Core to your tastes and needs.