I have an OMega X-33 that I plan on selling and am looking for a watch with the countdown / count up feature. I have an Aerospace with the countdown feature but it lacks the count up feature. I have found various digital "referee" watches with the feature but they are limited in countdown time and count up time. I'm looking for a watch with the most time tracking allowed. The best I have found is the Casio AE1300WH. It has 9 preset countdown times (45 min. max) and 60 min. count up max.
Does anyone know of a watch with a greater timer variance?