Watch is £208 with £50 cashback.
Add Trio Charger (£89) and use code FREECHARGER.
Black Buds Live are currently on special at £98 and qualify for £40 cashback.
Purchase of 2 items qualifies for £50 bonus cashback, so in all, £306 - £140 cashback = £166. Seems a good price for all that. Might also get Quidco but couldn't work out which rate applies.