Looking to buy a Omega Speedmaster Professional and I came across this 311-30-42-30-01-005 which seems well priced and authentic. But what concerns me is the box. Didn't all 311-30-42-30-01-005 come with that fancy giant black box with accessories?

https://www.ebay.com/itm/Omega-Spee...e&pageci=df0a7ff5-1a7e-40d9-a602-e28e685600a0Purchases made through these links may earn this site a commission from the eBay Partner Network

EBay Seller also interests me, the company is called Southern Alps Trading Company but ships from Japan. He doesn't have too many sales but all the listed watches appear to be authentic.

Thoughts?