He was a plumber, originally from the Czech Republic, but had lived for a long time with his girlfriend in Gardenstown in the north east of Scotland. His boat had been moored in Gardenstown harbour for many months. But in the early hours of Saturday morning, just over a week ago, he sailed out of the harbour - and hasn't been seen since despite a serious search.
Antonin Mican yacht
Antonin Mican, 32, was last seen on Friday evening on his yacht, and, later, CCT cameras detected that he had sailed out of the harbour on Saturday morning.
The search, involving lifeboats and an RAF helicopter in the Moray Firth, has failed to find any trace of the sailor.
Antonin Mican went missing from this harbour
Now police have appealed for information about him, and published a photo of his boat (top photo above). They think he may have intended to sail to Wick on the Caithness coast.
His yacht is described as a 22ft long blue and white Jaguar 22 with one outboard engine.
Divers and the Maritime and Coastguard Agency have now joined the search.
Det Insp Norman Stevenson, of Police Scotland, has appealed for people to report possible sightings of Mr Mican.
He said: 'It appears that this boat is Mican's only form of transport and he could have stopped anywhere along the coastline.
'We have carried out searches of the local area, although this will be continually reviewed as we go forward and assess any new information we receive.'