Do you really have to actually service them at 5 year intervals? I have Seiko SKX with a 7S26 movement that still people routinely say it goes 10+ years without a service. When you do, it's about $100 since the movement is so common and cheap. Seiko and Casio both make fine quartz watches that are solar powered and have much lower maint cost than an automatic watch (though typically not seen as a nice or luxurious watch). The swatch thin-line watches are quite nice and replacing the batteries is cheap.