Gruen was legendary for excellence in watchmaking and the "Pentagon" is evidence of that reputation. Unusual shapes were reserved for special timepieces that the company wanted to highlight. The "Pentagon" has a slimness and elegance that begs to be put in your pocket. The silvered dial bears the Gruen mark as well as the "Veri-Thin" and "Precision" designation. The gold hands have skeletonized diamond shaped ends that point to embossed Arabic numerals. The pentagonal shape is repeated in the shape of the recessed seconds bit. The case is yellow gold filled, plain polish that terminates in an arched bow. The 17 jewel movement is ticking, and keeping time like the day it was made. The only service that this watch required when we received it, was cleaning, oiling, and regulating. This is a testament to how well it was cared for over the years and to Gruen's quality. If you want a pocket watch that you can be proud to carry this is the one! Remember all of our timepieces come with our famous one-year parts and labor warranty.