Ball watch company for bmw power reserve pm3010c scj bk after realising the undeniable connection between the watchmaking and automotive worlds with both searching for perfection and precision ball watches combined forces with bmw to share these core fundamentalsand create a watch collection that celebrates the unique hallmarks of bmw vehicles this ball for bmw power reserve watch boasts an impressive 42mm stainless steel case which embraces the automatic calibre ball rr1702 c movement