Precision in this model is provided by Caliber L592.5, a self-winding mechanical movement featuring a frequency of 28,800 vibrations per hour. Equipped with a balance-spring made of monocrystalline silicon to better resist magnetic fields, it develops a power reserve of about 45 hours.

A bright green mother-of-pearl dial whose natural reflections accommodate 15 surface-set Top Wesselton VS-SI diamonds (0.057 carats each) serving as hour markers. Polished silver hands run across the dial indicating hours, minutes and seconds. Also present is the date window.

The round-shaped case is made entirely of stainless steel, with a diameter of 30.00 mm, a thickness of 9.50 mm, and an overall measurement from lug to lug of 37.00 mm.

Protection is provided by a scratch-resistant sapphire crystal with multilayer anti-reflective treatment applied on both sides, while the transparent sapphire crystal back allows a view of the inner mechanics.

The timepiece withstands water pressure up to 3 bar.

Total weight of 85.0 g.

Accompanied by packaging and official Longines 5-year warranty.