I recently had emailed to me from vouchercodes a 20% discount code on full price watches from Goldsmiths (same company as WoS). When added at the checkout to most of the well known high end watches it wouldn't apply a discount, but the code did work on a GO SeaQ. So my guess is that GO carry good margins for the dealer and therefore you should easily be able to negotiate at least 20% off the list price.