steady hands
Not limited but made-to-order, this IWC model features a top-shelf complication in the form of the Constant-Force Tourbillon — a solution to power balance-related timekeeping inaccuracy 10 years in the making.
Customisations are available for case, dial, strap and engraving, ensuring that no two watches are alike. A pair of case materials feature, namely red gold (from CHF230,000, S$330,000) and platinum (from CHF255,000, S$366,000) from which to begin commission.
![IWC Portugieser Constant-Force Tourbillon](https://rrsg.s3.amazonaws.com/wp-content/uploads/2018/09/22185136/FEA_IWCConstantForce_1-e1496310193750.jpg)
![IWC Portugieser Constant-Force Tourbillon](https://rrsg.s3.amazonaws.com/wp-content/uploads/2018/09/22185136/FEA_IWCConstantForce_2-e1496310177405.jpg)
![IWC Portugieser Constant-Force Tourbillon](https://rrsg.s3.amazonaws.com/wp-content/uploads/2018/09/22185137/FEA_IWCConstantForce_3-e1496310157170.jpg)
![IWC Portugieser Constant-Force Tourbillon](https://rrsg.s3.amazonaws.com/wp-content/uploads/2018/09/22185137/FEA_IWCConstantForce_4-e1496310144679.jpg)
A double moon phase indicator shares the dial with an hour-scale power reserve and the one-minute tourbillon, while the deadbeat seconds hand ticks by overhead.