From the Summit 3 Collection. Montblanc's Summit 3 watch features a durable, lightweight titanium case and advanced smart technologies, including improved battery life, multiple health-monitoring sensors, fitness apps, and more.<ul><li>Stainless steel bezel</li><li>Scratch-resistant sapphire crystal</li><li>Smart dial</li><li>Titanium case/rubber strap</li><li>Pin-buckle closure</li><li>Imported</li></ul><p dir="auto"><br><b>FEATURES</b><ul><li>Case is water-resistant to 5 ATM</li><li>Model number: 129267</li><li>Display: 1.28" full-circle AMOLED display 416 x 416 resolution</li><li>Operative system: Wear OS by Google 3.0</li><li>Compatible with iOS and Android with latest operating system</li><li>Memory: 1 GB</li><li>Storage: 8 GB</li><li>Heart rate, microphone, barometer, accelerometer, gyroscope, and ambient light sensors</li></ul><p dir="auto"><br><b>SIZE</b><ul><li>Round case, 41.9mm (1.65")</li><li>Strap width, 14mm (0.55")</li></ul>