If you've checked through the directory with no result, I would suggest emailing Link hidden: Login to view. Send the request to the team there and see if they can find any supplier leads for you to follow up with outside of our verified ones.
If you've got anything near your location that supplies clocks retail, I would suggest you go and see if you can strike a deal with them. You market their stock for a reduction in their cost and you tell them where they need to ship the clocks to, and invoice you for the cost. Just because someone isn't a traditional dropship supplier doesn't automatically mean they won't do it, so maybe an idea.