yes, there are slight variations, however it does not Display a wrong time. the liquid can be closer or further from the hour indicators depending on temperature. however, as you take the minutes from the minutes Hand it is always accurate. hyt are coming out with a thermical compenstaor that will b
am interested in ordering a velcro strap and alternative rubber strap for my RM011 are the straps of the RM027, RM035 and RM011 interchangeable. the case sizes are 39.7mm for bot the 027 and035 and 40.0mm for the RM011