Ebel - Automatic - Chronograph - Date - Men - E9137L73 Title: EBEL 1911 BTR Chronograph - Rare In-House Caliber 137 - Men - 2010-Present ​Short Description ​A masterpiece of Swiss engineering featuring the legendary in-house Caliber 137. This Ebel 1911 BTR (British Royal) combines an avant-garde hexagonal design with a movement history that shares DNA with the most prestigious names in watchmaking. ​The Heart of the Watch: The Legendary Caliber 137 ​The soul of this timepiece is the Ebel Caliber 137. Developed in the early 90s in collaboration with Lemania, this movement is a horological icon. • ​Heritage: When Ebel sold the rights to this caliber, it was acquired by Ulysse Nardin, who used it as the foundation for their own manufacture movements. • ​Exclusivity: It is a COSC-certified chronometer movement, consisting of 322 parts, featuring a unique 5-arm rotor that can be admired through the sapphire crystal caseback. • ​Importance: In an era of generic movements, the Caliber 137 stands out as a genuine "Manufacture" movement, highly respected by collectors for its reliability and precision. ​Technical Specifications • ​Brand: Ebel • ​Model: 1911 BTR (British Royal) Chronograph • ​Reference: E9137L73 • ​Movement: Manufacture Caliber 137, Automatic, COSC Chronometer. • ​Case Material: Brushed & Polished Stainless Steel. • ​Case Diameter: 45 mm (Wears very comfortably due to ergonomic lugs). • ​Dial: Deep black with "Clous de Paris" textured sub-dials and tachymeter scale. • ​Crystal: Double-sided anti-reflective Sapphire (scratch-resistant). • ​Case Back: Transparent Sapphire exhibition back. • ​Bezel: Iconic 1911 bezel with 5 signature screws. • ​Functions: 12-hour Chronograph, Quick-set Date, Small Seconds. • ​Strap: Original Ebel high-quality textured rubber strap with stainless steel deployment clasp. Suitable for wrists up to 21 cm. • ​Water Resistance: 10 ATM (100 Meters). ​Condition Report • ​Visual: The watch is in very good aesthetic condition with minor signs of wear on the steel case consistent with occasional use. The sapphire crystal is flawless. • ​Mechanical: All functions, including the chronograph start/stop/reset and date change, work perfectly. It keeps excellent time. • ​Included: This auction is for the watch only. No box or original certificates are included, but authenticity is 100% guaranteed. ​Shipping & Presentation ​The watch will be packed with extreme care in a generic protective travel box and shipped via express insured mail (FedEx/UPS/DHL) to ensure it reaches you safely and quickly.