WE PROPOSE 80 KS OBSERVATION OF THE SUPERSLOW (PERIOD OF 10 000 S) PULSAR AND THE 'ACCRETING MAGNETAR' CANDIDATE 4U 0114+65 IN ITS BRIGHTEST ORBITAL PHASE (0.4 - 0.6) IN ORDER TO DEFINITIVELY INVESTIGATE THE MAGNETIC FIELD OF THIS PULSAR. WE PLAN TO CARRY OUT (I) DIRECT MEASUREMENTS OF THE MAGNETIC FIELD BY PROBING INTO THE MUCH DEBATABLE CYCLOTRON LINE AND/OR (II) INDIRECT ESTIMATES BY APPLYING DIFFERENT ACCRETING MODELS. WE WILL ALSO PROBE THE HARD ENERGY TAIL IN THE NUSTAR AVERAGE SPECTRUM AND THE SPIN PHASE-RESOLVED SPECTRUM AS WELL AS CARRY OUT PULSE PROFILE AND VARIABILITY STUDIES OF 4U 0114+65 THEREBY LINKING THESE INTRIGUING SYSTEMS TO THE WIDER CONTEXT OF OTHER CLASSICAL HMXBS AND SFXTS.