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Quick TakeForget hefty steel bricks; this Divingstar is a featherweight champion rocking a high-tech forged carbon suit. It's like strapping a piece of a Formula 1 car to your wrist, but one that can actually plunge 300 meters below the waves. That bright yellow dial isn't just for show – it screams visibility, backed by Super-LumiNova® that pops when the lights go down, whether that's deep underwater or just leaving a late movie. Inside beats a COSC-certified heart, a Swiss automatic engine humming away with chronometer-grade precision, so you're always on time for your next adventure, even if it's just navigating rush hour. The domed sapphire crystal gives a cool nod to the vintage SUB 300s, while the carbon bezel adds a modern, functional edge. Secured by a comfy rubber strap with that essential diver's extension, this isn't just a watch; it’s a technically advanced, incredibly light, and seriously cool statement piece that blends iconic design with cutting-edge materials.
DescriptionThe SUB 300 Carbon model, reference 822.70.361.20, utilizes advanced materials and certified mechanical precision. Its case construction employs forged carbon, selected for its high strength-to-weight ratio, contributing to a contemporary aesthetic and reduced mass on the wrist. The case dimensions are specified as 42.50 mm in diameter and 45.00 mm lug-to-lug, with a total height profile of 13.40 mm. Integral to its pressure resistance is a chamber fabricated from titanium, which also constitutes the screw-down case back. A screw-down crown mechanism further secures the internal components against ingress. Water resistance is rated at 30 atmospheres, equivalent to 300 meters or approximately 984 feet, suitable for professional diving applications. Protecting the dial is a domed sapphire crystal, noted for its high scratch resistance relative to traditional materials. An anti-reflective treatment is applied to this crystal to maximize legibility by minimizing glare under various lighting conditions.
Functionality is governed by a Swiss mechanical automatic movement, engineered for self-winding operation via the wearer's motion. This caliber has achieved COSC Certified Chronometer status, indicating compliance with stringent timekeeping accuracy standards (-4/+6 seconds per day) tested over multiple days, positions, and temperatures. The movement operates at a frequency of 28,800 vibrations per hour (4.0 Hz) and provides a power reserve of approximately 38 hours when fully wound. Time indication includes central hours, minutes, and seconds hands. A date function is incorporated, displayed through an aperture positioned at the 3 o'clock marker on the dial. For dive timing, a unidirectional rotating bezel, also constructed from carbon with markings in meters, allows for the safe measurement of elapsed time underwater. Legibility in low-light environments is enhanced through the application of Super-LumiNova® luminescent material to all dive-related indices and hands. The watch is fitted with an FKM rubber strap featuring a lug width of 20.00 mm, secured by a folding clasp with a black PVD coating and an integrated, adjustable diving extension system.