Helbros Mechanical Wrist Watch – Ticktock Guru。Vintage Helbros Invincible 21J Men\'s Mechanical Wristwatch GermanyGold Tone Product Description Item: Wristwatch Brand: Helbros Model: Invincible Movement: Mechanical Case Material: Gold Tone Country: Germany Jewels: 21J Gender: Men\'s Size: 33.5mm Product Measurements Diameter: 33.5mm Lug Width: 18mm Lug to Lug: 39mm Thickness: 10 mm Product Condition Overall Condition: Good, overall condition for its age. Functions: Running and keeping time. Fast 28 Seconds a Day, Amplitude 171, Beat Error 1.8 Case: There are scratches on the case. Crystal: There are scratches on the crystal. Dial: The dial is in good condition. Band: The band is not original.