NIVADA Aquadatic Automatic Watch 21 Jewels Cal. ETA 2452 Swiss Made Wristwatch

"Nivada is a Swiss watch company founded in the town of Grenchen, Switzerland. Nivada is a manufacturer of Swiss watches, their timepieces have been in the watchmaking industry since 1926... In the United States, Croton was formed in 1940 as a distributor for Nivada products, so many were sold under the 'Croton Nivada', 'Croton Nivada Grenchen', and simply 'Croton' names."NIVADA Aquadatic Automatic WristwatchNivada Antartic21 Jewels  Waterproof – Shockprotected – Antimagnetic – Stainless Steel. Today, we have this unique and rare timepiece, it is a vintage Nivada Aquadatic automatic wristwatch dated from the 1960s. The case back is decorated and signed with the Nivada Antartic logo.  It is a self-winding watch powered by an automatic movement, caliber ETA 2452 (base caliber for the Tudor 2484), 21 jewels, sweep second-hand, date indicator (set by changing 21-24h), 18,000 A/h, 42 hours power reserve, Swiss made. It still has the original sunburst champagne dial featuring silver applied