Hamilton Electric 505C Calendar PROTOTYPE Watch Other Electric Watches but if they could have

but if they could have seen it

BAND/BRACELET:  Brand new genuine Leather Buffalo Grain Black Band with matching Gold Tone Clasp

The design was originally introduced as a sports watch to protect delicate crystals and dials on the polo fields

introduced in 1961

Hamilton Electric 505C Calendar PROTOTYPE Watch Other Electric Watches but if they could haveOffered is this Super Rare Hamilton Electric PROTOTYPE 505C CALENDAR watch. Pictured in Ren Rondeau's book "The Watch Of The Future" on pages 91 92, it was the prototype of the 507 Prototype that was never released. This 505C differed in that it did not have a separate quick set feature for the date. This example may have been one of the 505C's that was used to add that feature for the 507, because it does have a quick set feature like the 507.