The Yamaha serial numbers are sequential for each model and only for that particular model.Įach new Yamaha model starts with a new sequential serial number sequence. The YAS-23 starts in 1979/1980 and the YAS-21 has a removable bell and the YAS-23 has a soldered bell-bow connection. The YAS-21 has a removable bell, the YAS-23 has a soldered bell-bow connection.) The Vito 5XXXXX serial number Altos are YAS-23 models. The YAS-21 seems to become the YAS-23 around 1980 and the YAS-23/25 seems to become the YAS-275 around 2000/2001.ġ989 89759 501000 (Sudden Jump into 5XXXXX serials because the Vito YAS-21 changes to YAS-23. The Vito YAS-23 serial numbers beginning with a 5 like 501000 starting in 1989 do not match the Yamaha YAS-23 serials but the Vito YAS-21 serials from 1970-1980 do match the Yamaha YAS-21 serials.Īfter 1980 the Vito serials don't seem to match.įrom the Yamaha serial numbers and purchase dates that I've seen, the Vito serials do match the Yamahas for the YAS-21 up to 1980. The Yamaha YAS-21 serials match the Vito YAS-21 serials up until 1980 when the Yamaha YAS-23 is introduced but the Vitos still use YAS-21 parts until 1989 when the Vitos start using YAS-23 parts nearly 10 years after Yamaha introduced the YAS-23. Meanwhile, computer simulation facilitated the accurate positioning of keys and tone-holes to achieve new levels of accuracy in intonation. Research into the science of acoustics, which started around 1967, was applied to allow fine-tuning of a saxophone's body architecture. Employing traditional techniques backed by a scientific approach to manufacturing, we have gained an enviable reputation for making some of the world's top-quality products.

Yamaha began the full-scale development of Wind instruments in 1963. In 1969, our first baritone sax, the YBS-61 was also launched closely followed by the YAS and YTS-21 in the next year. Three years later, in 1967, the first saxophones to bear the Yamaha logo were brought to market, the alto and tenor models YAS/YTS-61 and the YAS/YTS-31. In 1964, Yamaha began the research and development process that led to the design and production of all the saxophone models. Bits and pieces of info I've come across for the Yamahas over the years.

Yamaha yts 62 serial numbers