if you can bear a secondhand watch..
I purchase a few watches from Ken's watches (all genuine). because i cant afford the new thing.... they have a few Breitling. they have a SuperOcean Chronograph form 17800HKD...All negotiable prices. they do tradeins too.
A place I also use to service my watches.. is CLassic watch repair in TST.. the owner speaks perfect english.. slightly pricey but can give you a estimation of the cost..