Flying into Frankfurt with 1-2 days in Hildesheim, Germany then off to Hannover for 5 days followed up by one night in Frankfurt before flying back out.

I go once a year but don't manage to see much. Going to try better this time...thus any input appreciated.

Worth a try.

 

I would pay a visit to Sinn's office in Frankfurt. They have a lovely watch display area at their HO. And it's located into what I think it's called the green district https://g.co/kgs/EBzQkv

 

Thats a great idea and a much better experience than buying online...and I just might KEEP the next Sinn I buy if I visit!
Thanks!