Sorry for late reply joeyB! How about the difference link? I don't understand that I saw one set is 175usd the other set 375usd. Do the both sets are available? I can choic any one?
i had a similar problem on my 243, wear it over 10hours later, then weak up on the morning, the watch stopped , suspect the auto winding may have trouble , buy manual winging is very good . so i sent it to my TD to fix this.