The new Urwerk UR-105M was conceived with an armour in mind. Like a shield, a steel protective bezel protects the titanium body.
The satellite complication is mesmerising. There are four satellites, each of them indicating three of the twelve hours. The current hour makes a 60-minute journey along the minute scale. Once the hour has elapsed, the satellite rotates and continues around its orbit for another three hours before returning to the centre stage.
Two additional indications, running seconds and power reserve, are displayed laterally on the case band.
This seconds indicator is synchronised with the honeycomb 10 seconds disk on the right side of the case near the minute scale.
On the back, we find the Control Board as Urwerk calls the set of additional indications including oil change (when it is time for servicing), the 42-hour power reserve and the fine-tuning screw allowing the adjustment of the rate.
The case, whose dimensions are 39.50mm x 53mm x 16.65mm, has been pressure tested to 30 metres. The UR 5.01 manual-winding movement beats at 28,800 vibrations per hour.
Two versions of the UR-105M are available: the Iron Knight with a titanium case and a steel bezel and the Dark Knight with a titanium case and an AITin-treated steel bezel. AITin is a black multi-layered coating of Aluminum Titanium Nitride produced by the physical vapor deposition (PVD) process.