I got mine for around rm450 at xxx at Bangsar shopping centre. I tried asking around in sincere and xxx timepieces in gardens but both were about rm600+. I asked why xxxgot it cheaper and was told that they kept stock and bought at the older price. I was so happy with the low price I immediately went back and changed my Seamaster PO to rubber silicon as well and I got it for a good price of under rm900 after discount.
The rubber strap for the b&r does not last long and deteriorates faster if you do not wear it often.