The watch is equipped with the in-house L792.4 caliber, a hand-wound mechanical movement with a flyback chronograph function and COSC chronometer certification. The movement operates at a frequency of 28,800 vibrations per hour and provides a power reserve of approximately 68 hours.
The dial features a subtle matte blue finish adorned with applied Arabic numerals and polished silver hands, both coated with Swiss Super-LumiNova for excellent nighttime visibility. The layout of the functions includes the small seconds sub-dial at 9 o’clock, the central 60-second chronograph hand, and the 30-minute counter at 3 o’clock.
The round case combines stainless steel with a bidirectional rotating ceramic bezel. Its dimensions are 39.50 mm in diameter, 13.40 mm thick, and 47.40 mm from lug to lug. The front is protected by scratch-resistant sapphire crystal with a multi-layer anti-reflective coating on both sides, while the back features a transparent, screw-down sapphire crystal case back. Water resistance is guaranteed up to 10 bar, and the watch weighs 103.0 g.
The blue rubber strap (20 mm lug spacing) has a synthetic lining on the back and features a pin buckle. It also comes with the convenient Longines interchangeable strap system, which makes changing the strap extremely easy.
Accompanied by packaging and official Longines 5-year warranty.






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