TAG-HEUR - but there's no point
Great threat - some brilliant examples of what not to buy.
I wear a TAG S/EL Chronograph, extremely accurate and easy to read however I wear it on my left wrist, which means to look at it in flight I need to apply throttle and collective friction - then I still cant see it as my glove covers the face, so I need to hold the cyclic with my knees and roll back my glove with my right hand (just too much effort) - basically it's pointless having a watch on your left wrist with gloves!
Just use the cockpit "accurate tiempiece" that's supplied as part of the aircraft.
PS - Before anyone says "roll the glove before flight" - doesn't stay there if you are flying PIC LHS with no door !