This is the one I got! The numbers are big, the strap is comfortable,and the tick is almost silent. Plus, it's pretty cheap. https://www.amazon.com/gp/product/B000GB0G7A/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
I don't know what he thinks about biglaw, but I think you may find answers to your second question here: https://www.reddit.com/r/LSAT/comments/w09s5/ama_jy_ping_founder_of_7sage_im_building_a_social/