Seiko Presage Sharp Edged Series "Open Heart" MSRP $1200-$1500 Used $900-$1000 Asking $650 obo Key Features of this Model Aitetsu Blue Dial: Features the collection's signature 3D "Asanoha" (hemp leaf) pattern, finished in a deep indigo iron color that shifts beautifully under lighting. Open Heart Display: An eye-catching cutout at the 9 o'clock position highlights the movement's balance wheel in motion. 24-Hour Subdial: Located at the 6 o'clock position, it helps track a a military scale or AM/PM distinction. Upgraded Movement: It houses the Caliber 6R5J automatic movement, which explicitly states "Automatic 3 Days" on the dial to designate its 72-hour power reserve. Core Technical Specifications Case Diameter: 40.2 mm Thickness: 13.5 mmCrystal: Dual-curved sapphire with inner anti-reflective coating Case Material: Stainless steel with DiaShield super-hard coatingWater Resistance: 100 meters (10 bar)