Was the sky brightening when you saw it, or was it still pitch black?
Uranus (Mag 5.9 or thereabouts) is barely visible to the naked eye in perfect viewing conditions; you would have had to have pretty exceptional vision to be able to see it in the morning sky. Neptune is a telescope-only object, at Mag. 8. Both would be visible with a 60 mm refractor, but I'd be surprised if you could resolve either as much more than a "star" anyway.
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