Vintage Gruen Guild 15 Jewel Men\'s Mechanical Wristwatch M Swiss Base Metal Product Description Item: Wristwatch Brand: Gruen Model: Guild Movement: Mechanical Case Material: Base Metal Country: Swiss Jewels: 15 Jewel Gender: Men\'s Caliber: M Size: 21mm About the brand: Founded in Ohio - Gruen was one of the largest American watch manufacturers for the greater part of the 20th century. In fact, shortly after their relocation to Cincinnati, Gruen became the number one selling watch brand in the US. Like many brands - their factory in Time Hill ceased production of wristwatches and produced contracted military watches for the US Military in WW2. After the war, the flood of Swiss import watches had a disastrous effect on Gruen, and the brand ultimately closed its doors in 1977. Today, their wonderful line of vintage watches such as the Airflight, and Curvex models are all that remains of this once great brand. Product Measurements Diameter: 21mm Lug Width: 16mm Tip to Tip of Lugs: 38mm Product Condition Ok, overall condition for its age. Running, but it will need serviced. This means, it can run unreliably, start or stop and timekeeping is not guaranteed. There is discoloration and scratches on the case. There are scratches on the crystal. There is discoloration on the dial. The band is not original. Amplitude is strong at 258 but the beat error is high and timkeeping is poor. Case shows signs of age and wear.