This is a 1930s Wyler Incassable/ Cricchettino/ wig weg rectangular shaped dress watch and it is the earliest automatic movement patented by Wyler. From the horology point of view, this is a one of the first few attempt of watch manufcaturer at making automatic watch. Other examples include Harwood watch. The winding mechanism is activated by a "gear" system that utilizes wrist pressure on the caseback. The case is divided into three parts, secured by a hinge at 12 o'clock. A small button inserted through a hole, pressed by wrist movement, winds the spring via a lever and gear system. in short, what is unique is in its double case back where it has a two-part case back. The outer part of the case back is hinged and slightly larger than the piece that covers the movement. When the watch lies face down, the outer “flying” case back falls down on it like a blanket over a bed. The trick is that there is a tiny pin sticking out of the watch. Each time the outer case back “closes” down, it winds the movement a bit.
The watch has the world’s probably flattest and more fragile crown, with a small pin sticking out from the actual case back. When goggle on the net, there are less then 10 of such watch.
The Italian nickname, Wyler Cricchetto or Cricchettino (Wyler Ratchet), is quite significant. The term was used not only at the forum but also officially in press materials released in 2004 by the National Museum of Science and Technology in Milan, which collaborated with Wyler Vetta to completely reorganize its watch department. This is one of only a few such watches left in the world (circa 1930s).Wyler filed patent CH156804 for a new self-winding watch on June 9th, 1931. The Crichettino was designed as a watch with “automatic winding by means of a mass moving inside the case under the influence of the movements of the wearer,” according to the translated patent documentation. The patent was granted a year later on August 31st, 1932.
Not very often one comes across such watch plus with its Original dial which states Wyler automatic INCASSABLE . The case measures 23mm. x 38mm (lug to lug). When Bihn first message me the watch, I didnt take a good look until he eminded me that its an usual watch. Upon looking, I then realised that its the unique early automatic watch. I remembered the golden rules of vintage watch collecting : Never underestimates any watch!!
https://www.fratellowatches.com/automatic-wyler-crichettino/#gref
https://www.fratellowatches.com/tbt-wyler-crichettino-with-a-stunning-dial/#gref
The watch was sold at ebay Euro 1450 in 2022
https://e-v-w.com/collections/wyler?srsltid=AfmBOooaLfdTAtZ1CeDRR0J1veLq0SqgWKa5XtaUtugIKS7ee_EBmPnn
For those who are keen can purchase this watch