Pupils are being told to remove watches from their wrists before taking GCSE and A-level exams, to combat cheating.
In most cases, students are being told to place the timepieces on their desks, but invigilators can demand they are left outside of the exam hall.
The new rule was introduced to prevent pupils trying to pass off smartwatches - which have long been banned - as normal ones.
Some universities have already imposed similar requirements.
The regulation was announced by the Joint Council for Qualifications (JCQ) in an online…