You Have Been Contracted to Make a Clock for a Prospecting

Essay

You have been contracted to make a clock for a prospecting team that is to go over a mountain pass. They are all chess experts and the guide has requested a very accurate clock. However, being from the "old days" he has mandated that there are to be no electronic clocks on the trip, meaning that you need to design a mechanical one. Would you pick a pendulum clock or a balance clock? Please explain.