I have a stopover in Beijing but I'm worried about the time

Hello,

I know above it says International to International transfers should only need 60 minutes, however I cannot check in for the second half of my flight online, so I will need to check in and get my boarding pass at Terminal 3. In that case, I am afraid I will not be able to use the special passageway for transferring. However, I have 120 minutes total between flights. Should this be okay?

I'm flying Air China both flights, landing and departing through T3. Coming From Seoul-Gimpo to BJ, then to JFK. Landing in BJ 11:00am and departing 1:00pm.