The manufactured movement is in stainless steel case ref.416 or rose gold case ref. 410. Available anthracite or white dial with applied indexes.
In addition for 2012, changeable "Sweeping" to "Jumping" seconds function.
Paul Gerber has taken the opportunity to integrate two spring barrels in his new automatic manufacture movement «Caliber 41» achieving 100 hours of power reserve.
Inspired by the original Retro Twin with the famous twin rotor system, the Caliber 41 is fitted with three gold rotors. Each rotor is individually assembled to the movement using custom-made ball bearings. The Caliber 41 also incorporates a large quick set date system. The date can be adjusted either forwards or backwards.