Paterson still make a very nice 60 minute timer that is quite easy to see. It has three buttons, stop, go and reset. You could also keep an eye out on ebay for a large Junghans timer. Same as the Paterson in function but wall mounted and 12 inches in diameter. I favour the Gralab timer. Very easy to use with one hand and very visible in the darkroom. The only downside, for me, was that I had to install an extra power point over the sink.