Just think about how many people put their wood-handled kitchen knives in the dishwasher. I'm sure most people don't even think twice about it. The wood used in your Sebenza is probably a much more durable species than they use in "Old Hickory". Cocobolo and African blackwood, in particular, are very resistant to hot soapy water and saliva.
I'm not telling you to put your Sebenza (or any knife) in a dishwasher. I'm just saying that as long as CRK isn't using completely unsuitable wood, a little soap and water won't be a problem. Keep a little mineral oil on the scales to keep the wood fresh and looking good.