Case Material: 950 Platinum Case Size: 39.5mm Dial: Solid silver with a silver-white finish, black printed Arabic numerals, blued steel hands, and a stunning tourbillon aperture at 6 o’clock Strap: Hand-stitched black alligator leather with platinum pin buckle Movement: Manual winding, in-house Lange calibre L102.1 Functions: Hours and minutes Small seconds One-minute tourbillon with patented stop-seconds and zero-reset mechanism Power Reserve: Approximately 72 hours Crystal: Scratch-resistant sapphire crystal (front and exhibition caseback) Water Resistance: 30 meters Reference Number: 730.025 Special Features: Tourbillon with stop-seconds and zero-reset—a world-first technical achievement by Lange Traditional 1815 design inspired by Ferdinand A. Lange’s pocket watches Meticulously hand-finished movement visible through the sapphire caseback German silver three-quarter plate, gold chatons, and hand-engraved balance cock A rare and highly refined timepiece marrying innovation with classical elegance Made in: Germany
