The UNIMATIC x Massena LAB U5S-ML24, is an insiders-only, limited edition of 99 pieces with a GMT function. Like the U5S-ML, the U5S-ML24 features a 36mm case, which places the watch firmly in the midsize and unisex categories, whose discreet case size compliments a diverse range of wrists. The U5S-ML24 is a discreet travel watch, whose size, subtle profile, and GMT function make it ideal for international journeys. Technical details: Movement Self-winding, ETA caliber 2893-2, 28,800bph, 21 jewels. Made in Switzerland. Functions GMT Function. Hours, minutes, seconds, date. Dial Matte black with glossy white indices. Straw-yellow GMT hand and 24-hour markers. Reverse lollipop second hand. Date window at 6 o'clock. Luminous hour, minute, and second hands. Case Introducing the Modello Cinque, UNIMATIC's first watch with a 36mm case. Brushed 316L stainless steel. Crystal Double-domed sapphire crystal with anti-reflective coating.