ZrN is for Zirconium Nitride: A champagne-coloured high-performance ceramic machine tool coating which, while only a few microns thick, is very hard (2000 Vickers); provides excellent scratch, wear, and corrosion resistance; and exhibits good lubricity and ductility. The ZrN coating is vapour-deposited over the sandblasted steel bezel to provide the timepiece’s distinctive frosted pale gold effect. ZrN coated tools are suited to non-ferrous metal applications, e.g. aluminum, copper and titanium, and are used for coating medical devices and aerospace components.
Enveloped in a secure titanium case, planetary gearing keeps the three hour satellites in parallel formation while they take turns to indicate the time as they pass the 60-minute track. An “Oil Change” indicator alerts the user when it is time for a service; a “Day/Night” indicator helps keep track of changing time zones; and twin turbines on the back minimize wear in the automatic winding system.
Technical SpecificationsAn Édition Spéciale of just 12 pieces available exclusively from Chronopassion (Paris), Marcus (London), The Hour Glass (Singapore) and Westime (Los Angeles).
CaseGrade 5 titanium with bezel in 316L sandblasted stainless steel treated with *Zirconium Nitride
Dimensions: 47mm x 51mm x 16mm
Two-position winding crown with cover
Water resistance: Pressure tested to 3 ATM
MovementCalibre: UR 9.01 self-winding
Balance: monometallic
Jewels: 46
Frequency: 28,800v/h, 4Hz
Balance spring: Flat
Power: single mainspring barrel
Power reserve: 39 hours
Winding system: unidirectional winding rotor coupled to twin turbines
Finish: circular graining and diamond polishing
Chamfered and polished screw heads
IndicationsRevolving satellite complication with rotating hour/minute modules mounted on planetary gears
Control Board: Day/Night indicator; “Oil Change” indicator and running seconds
*Please note that ZrN (Zirconium Nitride) is an industrial treatment that can result in variations in and the colour/hue on the bezel and between individual models.
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