The Casio A159WAD-1D measures 36.8mm by 33.2mm, is just 9.7mm-thick, and only weighs 45g or 1.58 ounces. Pick it up, and the apparently five-piece link bracelet loudly rattles, not just at its loose ends around the open clasp but even in between the lugs.

Made in Japan, boasting a +/-30 second accuracy per month and a seven-year battery life on a CR2016, the Casio A159WAD-1D is a diamond in the rough, a bit of a gem that is likely to be a fun addition to your collection.