UR-112 Aggregat Back to Black

Reference: UR-112 Aggregat Back to Black
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Limited Edition: 25 pieces
Case: stainless steel hinged cover and titanium body, both treated with DLC
Size: 51 x 42 x 16mm (LWH)
Movement: automatic-winding manufacture caliber UR-13.01
Function: multiple triangular prisms are used for the digital jumping hour and running minute displays; a digital seconds counter and the power reserve indicator are both located beneath the hinged cover
Power Reserve: approximately 48 hours
Dial: time is displayed digitally in two transparent cylinders
Hands: luminous indications for the hours, minutes, seconds, and power reserve
Water Resistance: 30m
Strap/Bracelet: textured black rubber
Factory Warranty: two years


The UR-112 Aggregat Back to Black comes in a steel and titanium body with a complex architecture. Its steel hood is grooved and openworked. It gives a glimpse of the richness of this gleaming speed machine. This cover opens vertically to provide access to the secondary power reserve and digital seconds indications. Its central titanium body is satin-brushed, sandblasted, and bead-blasted, thereby forming a field of functional microdots. The two blackened steel wings of the UR-112 Aggregat Back to Black fit into this central body. Each zone, space, and element has its own texture, finish, and language.

The UR-112 Aggregat Back to Black belongs to Urwerk’s Special Project line. This is a departure from the founding concept of the company’s wandering-hour indication, on a whole new scale, with new volumes for the UR-122 Aggregat and its UR-13.01 caliber.

The UR-112 Aggregat Back to Black displays jumping hours and trailing minutes on prisms. Shifted to the front of the watch, they’re visible in their large sapphire crystal housings. As the hours jump on one side and the minutes advance in five-minute increments on the other, an additional trailing indicator shows the exact minutes.