IWC Portuguese Perpetual Calendar retains its two familiar faces: one model of this watch is equipped with a quasi-universal hemisphere lunar display (Ref. 5021), in which the miniature model of the Earth’s satellite is pictured twice. Exactly as the phases of the moon appear when viewed from the northern or southern hemisphere – that is to say reversed. This distinctive optical feature has to do with the visual angle and the different point of observation. The number of days remaining until the next full moon can also be read precisely on a supplementary countdown scale in this model.
The replica IWC Portuguese Perpetual Calendar in 18 carat red gold with hemisphere lunar display (Ref. 5021) differs from the previous rose gold model through the rather warmer hue of the case material. The second new model, the white gold variant with a midnight blue dial and silver-plated highlights, for example for the seconds subdial or on the moon disc, presents a particularly attractive side as regards colour.
The simultaneous display of the two moons functions as follows: it is not the moon disc itself that moves, but an engraved disc representing the globe with two circular cut-outs set against a silver-coloured background, which carries two blue circular surfaces in a horizontal plane. In this way, the moon in the southern hemisphere is shown mirror-inverted or laterally reversed in relation to the moon in the northern hemisphere.
IWC Portuguese Perpetual Calendar is available with the classic cut-out moon phase display when observed from the northern hemisphere (Ref. 5023). The Earth’s satellite waxes onto this miniature stage from the left behind the semicircular setting becomes visible in the middle as a full moon and wanes on the right side behind the second semicircle. It is accompanied on the moon disc by small raised stars. The two new models with the representation of the moon behind a setting are now also housed in the 44.2-millimetre case of their sibling models (Ref. 5021). These are the variant in18carat red gold with a silver-plated dial, solid red gold appliqués and a red gold-plated moon surrounded by small stars, and a highly discreet model in18carat white gold with rhodium-plated appliqués and a slate-coloured dial.
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Review IWC Portuguese Perpetual Calendar Steel Watch
The replica IWC Portuguese Perpetual Calendar in 18 carat red gold with hemisphere lunar display (Ref. 5021) differs from the previous rose gold model through the rather warmer hue of the case material. The second new model, the white gold variant with a midnight blue dial and silver-plated highlights, for example for the seconds subdial or on the moon disc, presents a particularly attractive side as regards colour.
The simultaneous display of the two moons functions as follows: it is not the moon disc itself that moves, but an engraved disc representing the globe with two circular cut-outs set against a silver-coloured background, which carries two blue circular surfaces in a horizontal plane. In this way, the moon in the southern hemisphere is shown mirror-inverted or laterally reversed in relation to the moon in the northern hemisphere.
IWC Portuguese Perpetual Calendar is available with the classic cut-out moon phase display when observed from the northern hemisphere (Ref. 5023). The Earth’s satellite waxes onto this miniature stage from the left behind the semicircular setting becomes visible in the middle as a full moon and wanes on the right side behind the second semicircle. It is accompanied on the moon disc by small raised stars. The two new models with the representation of the moon behind a setting are now also housed in the 44.2-millimetre case of their sibling models (Ref. 5021). These are the variant in18carat red gold with a silver-plated dial, solid red gold appliqués and a red gold-plated moon surrounded by small stars, and a highly discreet model in18carat white gold with rhodium-plated appliqués and a slate-coloured dial.
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Review IWC Portuguese Perpetual Calendar Steel Watch
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