I always clean my watch strap with "Ultrasolve", which is manufactured by Electrolube. The spray removes every trace of dirt, in effect, it dry cleans it!
You might find it difficult to purchase Ultrasolve unless you are familiar with the electronics service industry, but Maplins sell something similar:
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You might find it difficult to purchase Ultrasolve unless you are familiar with the electronics service industry, but Maplins sell something similar:
http://www.maplin.co.uk/p/maplin-electronic-cleaning-solvent-200ml-n69an
http://www.amazon.co.uk/s/?ie=UTF8&keywords=ultrasolve&tag=hydrukspg-21&index=aps&hvadid=34813254601&hvpos=1t1&hvexid=&hvnetw=g&hvrand=5722425416713146107&hvpone=&hvptwo=&hvqmt=e&hvdev=m&ref=pd_sl_1ro7sf487e_e
How many wives do you have?