The Elgin 92 watch movement, produced during 1940-1950 with 460,000 units, belongs to the Model 2 series. It utilizes a Breguet hairspring and is available in various configurations. The 519 version has 15 jewels and a matte finish, the 524 has 17 jewels, the 526 has 7 jewels with a matte finish, the 531 has 21 jewels with a Limited Edition variation, the 532 has 15/16 jewels with a matte finish and sweep second hand, and the 539 has 15/16 jewels and can be either matte or gilded and includes a sweep second hand with a hack feature.