At first glance, the Clearview is very similar to the Hamilton RR Special 51 apart from slightly different wording on the dial. However, turn it over and it's immediately apparent why it's called the "Clearview" --- the case back has a bevelled-edged crystal set flush into the stainless steel back allowing a clear view of the 505 movement in action.

The Clearview is an extremely rare Hamilton Electric; the estimated production run was only 1000, making it even more scarce than the exceedingly rare "Altair". I was lucky enough to pick up a case and case back recently for the huge sum of $40...it takes a standard 505 movement and I have a spare RR Special 51 dial which will be refinished in the "Clearview" style.

Dec 2006: The old RR Special 51 dial has now been re-finished in the style of the Clearview and the watch is now fully restored, complete with a new gold contact. The last photo shows the Clearview alongside two RR Specials --- you can clearly see their similarities.