There’s nothing more classic and appealing than a simple dress watch.

Though to be fair, when we say “simple,” we mean “uncomplicated” — not unattractive! The 21st century saw a plethora of such watches hit the market. Generally available on leather straps and featuring two or three hands, these reliable wristwatches kept time during the classiest decades of the past 100 years. However, some were more innovative than others.

This particular piece from Piaget, specialists in ultra-thin watchmaking, offers something a bit different...

Housed in a 35mm, yellow gold coin-edged case, it features a hinged front opening made out of a circa 1887 $20 coin, a matching $20 coin caseback, and a square pusher to open the front. Inside, an additional hinge allows the 'watch' to fold upwards, revealing a lovely sunburst 'salmon' dial with a pencil handset and a manual winding movement within.

Eye catching and eyebrow raising, this unusual piece is an exercise in out-of-the-box thinking that is exactly what we love about Piaget.