Full set, Blancpain, Fifty Fathoms, model: 5000 0240 O52A Automatik, matte satin grey ceramic, case diameter: 43.6mm Movement model: Cal.1315 automatic mechanical movement, Blancpain in-house movement Power reserve: 120 hours (5 days) Vibration frequency: 28,800 times per hour, equipped with a silicon hairspring, featuring excellent anti-magnetic and anti-shock performance Number of gemstones: 35, and the polishing process meets the standards of high-end watchmaking Appearance specifications Case diameter: 43.6mm, case thickness: 13.8mm, lug width: 23mm Case: Matte satin grey plasma ceramic, wear-resistant and corrosion-resistant, with a matte and high-end texture Bezel: Unidirectional rotating ceramic bezel with embedded liquid metal scale, scratch-resistant and wear-resistant Dial: Sunray-patterned blue dial, luminous polka dot hour markers, date window at 3 o 'clock, with a red second hand as an accent Crystal: Sapphire crystal glass, and the back of the watch is transparent sapphire glass Strap: Deep blue Marine canvas strap, paired with a ceramic clasp. Material scarce: Grey plasma ceramic case, different from the conventional steel model, is lighter, scratch-resistant, and has a low-key and high-end texture Long power movement: 5-day ultra-long battery life, no need for frequent winding during daily wear. Retro diving style: Blue dial + ceramic case, suitable for formal wear, casual wear, and outdoor use in various scenarios