The Enicar Sherpa is made for watch enthusiasts. Earlier development of the brand culminated in the Sherpa GMT and Sherpa World Time of the early 1960s.
If my Jet is anything to go by, the date change starts early and lazily makes its way over until midnight, see comparable photo below. So on the assumption the OP's watch was approaching midnight (24hr hand tells me it was), then it may well be normal.