3 ms·I dont really understand how you could possibly care about thickness of a watch at the inch levelby tekla 3y agoI dont really understand how you could possibly care about thickness of a watch at the inch levelstonogo 3y agoAt this size it interferes with putting your hands in your pockets.beezle 3y agoAny watch case over 12mm thick is considered "thick". Thin is typically under 8mm. (25.4mm=1 inch)