The Jaeger-LeCoultre Master Compressor Chronograph is an exceptional timepiece, blending advanced technical innovation with classic design. It is part of Jaeger-LeCoultre's renowned Master Compressor collection, known for its robust and precise performance. MovementCaliber: Jaeger-LeCoultre 751B/1Type: AutomaticFrequency: 28,800 vibrations per hour (4 Hz)Power Reserve: Approximately 65 hoursJewels: 41Functions: Hours, minutes, small seconds, chronograph, date CaseMaterial Options: Stainless steelDiameter: 41.5 mmThickness: 14.3 mmCaseback: Sapphire crystal with anti-reflective coating, allowing a view of the movementWater Resistance: 100 meters (10 ATM)Compressor Crown System: Ensures water resistance and ease of operation DialColor Options: Black, silver, or blueFinish: Sunray-brushed or matte, with applied hour markersHands: Luminescent-coated, sword-shapedSub-dials: Chronograph minutes at 3 o’clock, chronograph hours at 9 o’clock, small seconds at 6 o’clockDate Display: Between 4 and 5 o’clock BezelMaterial: Stainless steelType: Fixed, with a polished finish CrystalMaterial: Sapphire crystal with anti-reflective coating on both sidesShape: Domed for optimal legibility StrapMaterial: stainless steel braceletClasp: Folding clasp in stainless steel Additional FeaturesChronograph: Column-wheel mechanism with a central chronograph seconds handPrecision: Tested for 1,000 hours to ensure accuracy and reliabilityAesthetics: Elegant design with a sporty touch, highlighted by the compressor crowns and distinctive dial layout The Jaeger-LeCoultre Master Compressor Chronograph combines robustness with elegance, making it a versatile choice for both daily wear and special occasions. Its advanced features and refined aesthetics reflect Jaeger-LeCoultre's commitment to horological excellence.