I am also selling many vintage, antique, and unused wristwatches. → #nekoneko ● Product Name: Monblan NEW EIKO Tsurumaki Clock Shop Eikosha Hand-wound, made in Japan in the 1940s Small Seconds 18000 vibrations, low beat New leather strap ● Case width: approx. 34mm (excluding the crown) Lug width: approx. 18mm (Please allow for some error) ● In 1916, Eimatsu Tsurumaki established Tsurumaki Clock Shop Co., Ltd. in Ueno, Tokyo. At first, they were wholesalers, but they started manufacturing watch cases in 1919, and in 1924, they established Eikosha, a subsidiary of Tsurumaki Clock Shop Co., Ltd., in Takinogawa, Oji, and began manufacturing T・S・U-marked wall clocks. The official name of "Eikosha" was Tsurumaki Clock Shop Co., Ltd. Eikosha, and the watch manufacturing division of Tsurumaki Clock Shop was Eikosha. In 1935, they began producing the "New Eiko" and other models, and entered the market in September 1938. 1935 was the year when CIT○ZEN completed the prototype of the Type 8 wristwatch, Muramatsu Watch Works also completed the Type 9 and Type 8 wristwatches, and Toyo Tokei also started manufacturing wristwatches, making it the year when wristwatch manufacturers such as SE○KO, CIT○ZEN, Eikosha, Muramatsu, and Toyo lined up. Later, in 1949, the Eikosha Insurance Association was dissolved, and it is said that it "disappeared" during the industry reorganization period of 1950. As such, this "Monblan NEW EIKO" is a valuable piece from the dawn of Japanese wristwatches. ● Although unused, it has been stored for a long time, so there are some scratches due to the passage of time, but the atmosphere of the dial is also tasteful and has a good feel. The engraving on the case back is clearly visible, and it is in good condition for an antique wristwatch of this era. A new leather strap is included. Please check the photos. ● Before listing, I checked the operation, and it works when the crown is wound. The daily rate is about ±1 minute as measured flat on a timegrapher. (The daily rate changes depending on the position, temperature, etc., so please consider it as a reference) However, it is an approximately 80-year-old Japanese-made wristwatch. I cannot guarantee the accuracy or operation after arrival, so please have it overhauled if you intend to use it. Please consider this only if you understand this. ● There may be scratches and stains that cannot be fully captured in the photos. Also, the evaluation of the item is my subjective opinion, so there may be individual differences. Please refer to the description and photos and consider it.