there aren’t a lot of choices, have you looked at the astrolux S1?
—EDIT
review says”S1 weighs 76 grams with the 18650 tube and 55 grams in the 18350 form”
too heavy
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you may find better luck with 16340 lights, they really are about the same battery capacity as 18350.
in either case you will be stuck with a twisty switch probably.
i have one of these and it is pretty good, very small and cheap, decent light tint, super lightweight
https://www.amazon.com/gp/product/B00M2S7KYM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
out of stock at amazon, not sure how to find elsewhere, no brand given here
here it is on ebay
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these are ok too
review
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i think it will be impossible to find 60g including the battery
at least w 18350
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wle