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IWC 59360

Cal. 59360 is an hand winding modular monopusher chronograph movement produced by IWC starting in 2015.

Details

IWC has been transitioning to in-house movements since 2000, enhancing the reputation and technical features of their watches. In 2011, IWC introduced the Cal. 59000 family of hand-wound eight day movements. This family features a single barrel and mainspring and ticks at a modern 4 Hz, making the long 192 hour power reserve extremely impressive.

Cal. 59360, introduced in 2015 in the IWC Portofino Hand-Wound Monopusher, is the only member of this family with a chronograph complication. The movement had been revealed in 2013 at SIHH but was withdrawn before sale and reappeared two years later on a special edition Unique Portofino Hand-Wound Monopusher Edition "Tribeca Film Festival 2015".

Although IWC's contemporary Cal. 89000 family of chronographs was introduced just a few years before, it is a compact, conventional automatic movement with twin pushers. For the Portofino, IWC wanted a classic monopusher design in a large movement befitting the massive diameter of the Portofino case. The chronograph is implemented as a module on Cal. 59215 and features a column wheel yet is only 1 mm thicker than the base movement.

The chronograph mechanism in Cal. 59360 is quite unusual in design. It features a rocking pinion to engage the seconds wheel in the base movement rather than the vertical clutch found on many other high-end chronographs. Another classic and important element is the sautoir, which allows the chronograph minutes hand to jump instantaneously rather than advance continually with the seconds hand.

IWC 59000 Movement Family

Movement Year Introduced Jewels Central Hands Small Seconds Power Reserve Indicator Calendar Special Features Example Watch
IWC 59210 2011 30 Hour and minute Yes 8:00 Date N/A IWC Portofino Hand-Wound Eight Days
IWC 59060 2015 30 Hour and minute No Back No N/A IWC Portofino Pure Classic
IWC 59215 2013 30 Hour and minute Yes Back Date N/A IWC Portofino Hand-Wound Eight Days
IWC 59230 2013 30 Hour and minute Yes 8:00 Big date N/A IWC Portofino Hand-Wound Big Date
IWC 59220 2015 30 Hour and minute Yes 8:00 Big date and Day by pointer N/A IWC Portofino Hand-Wound Day & Date
IWC 59235 2018 30 Hour and minute Yes Back Big date N/A IWC Big Pilot's Watch Big Date
IWC 59360 2015 36 Hour and minute Yes 8:00 Date Column wheel monopusher chronograph IWC Portofino Hand-Wound Monopusher
IWC 59800 2015 30 Hour and minute Yes 8:00 Date Moon phase indicator IWC Portofino Hand-Wound Eight Days Moonphase
IWC 59900 2017 30 Hour and minute Yes 3:00 Date by pointer Tourbillon IWC Portofino Hand-Wound Tourbillon Rétrograde Red

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