Up for sale is a rare and undeniably unusual Seiko Alba Y101-6040 “Flap Duck” quartz men’s watch, dating back to 1993. This distinctive piece features an asymmetrical 36mm case that echoes the design language of the iconic Giugiaro “Aliens” watches—though from what limited information is available, it seems to be inspired by them rather than an official Giugiaro Design. One of the standout features is its unique sliding clasp bracelet, which includes centimeter ruler markings—a nod to its rugged, utilitarian style. The "Flap Duck" branding refers to a Japanese outdoor clothing retailer, and this model is one of several co-branded Alba watches. That said, it’s by far the most striking and unconventional of the bunch. I searched for this watch for quite some time and finally tracked down this excellent example in Japan. Now that it’s in hand, I’m making room for something new—so this rare gem is up for grabs. In over a year of looking, this is the only one I’ve ever come across for sale. While rarity doesn’t always mean high value, this piece is undeniably cool and in fantastic condition, with only minor signs of wear. It’s fully functional, keeping accurate time, and the crown works perfectly. (Please refer to the photos for details.) Watch is in good condition $250 USD - tracked shipping, sent out from Singapore.