The Hornets are keen to bring the centre-back to Vicarage Road this month despite him currently being away representing his country at the Asian Cup
Watford are in talks to sign South Korea international defender Kim Min-jae as Javi Gracia looks to bolster his squad during the January transfer window.
The 22-year-old is currently representing his country at the Asian Cup in the United Arab Emirates where he has scored two goals during his side's passage to the last 16.
But he could yet seal a move to the Premier League over the next few days, with his current club, Jeonbuk Hyundai Motors, confirming an offer - reported to be in the region of £6 million ($7.