Sealiner Chronograph Sapphire/5N

The Cvstos Challenge Sealiner Chronograph is a bold and technically sophisticated timepiece that reflects the brand’s avant-garde approach to watchmaking. Its distinctive tonneau-shaped case (53.7 × 41 mm), crafted from 5N red gold and sapphire, creates a powerful presence on the wrist while highlighting the innovative use of materials. The dial features a teak wood plate inspired by luxury yacht decks, enhanced with decorative appliqués and a refined Côtes de Genève finish. Luminous indexes and hands ensure excellent readability in all conditions. Powered by the Cvstos CVS857 automatic movement, the watch offers chronograph functionality, hours, minutes, small seconds, and an in-line day/date display, with a 48-hour power reserve. It is paired with a rubber or alligator leather strap with a folding clasp, combining comfort, durability, and sporty elegance.