Sea Dweller 16600 Urgent Questions!!

[Tri-National-Man]

Hi Members,
I went to a Watch&Clock fair yesterday (Nr Birmingham, UK), sold my Sub 16610 and purchased a Z serial SD 16600 from a dealer there. I got home happy with my new watch and started to research it...Ok, this is when I start getting nervous..Despite the bracelet reference being 93160A and the clasp code being OP4 and these same ref numbers and letters can be found on the inside edge of the SELs I realised that the links of the bracelet are the same size as my sub ND 93150 bracelet..Is this right or should the SD bracelet be of a thicker/chunkier build?? I sent the dealer the same queries and he reckoned that mine is correct.. (he has offered me a full refund if I'm still not happy). What do the SD experts say??