Housed in a 39.5mm round 18K white gold case with a fixed bezel and scratch-resistant sapphire crystal, the Grand Complications 6159G-001 draws the eye immediately to its grey dial — a metallized sapphire surface that opens a direct view to the movement below. White gold dial markers and luminescent hands ensure legibility, while the fold clasp secures a black composite leather strap for a refined, comfortable fit.
The self-winding mechanical movement powers a full perpetual calendar display, offering date with a retrograde hand, day, month, leap-year cycle, moon phase, and a day/night indication — all coordinated through carefully arranged apertures and subdials. The hobnail guilloché pattern decorating the case reflects the level of hand-finishing skill intrinsic to this reference.
Water-resistant to 30 metres and carrying Swiss Made designation, the 6159G-001 is accompanied by its original box and papers. Functions include date, day, hour, minute, day/night, and year indications, making this perpetual calendar a thoroughly equipped expression of high watchmaking.
