http://www.amazon.com/Citizen-BN0000-04H-Stainless-Steel-Eco-Drive/dp/B000EQS1RO/ref=sr_1_1?ie=UTF8&qid=1437601371&sr=8-1&keywords=bn0000-04h

http://www.amazon.com/Seiko-SSC017-Solar-Stainless-Steel/dp/B00756GRUE/ref=sr_1_12?ie=UTF8&qid=1437601395&sr=8-12&keywords=seiko+diver

are my go to watches, but like others have said, a cheap casio will do just fine.