Portuguese Perpetual Calendar is an automatic winding mechanical using the IWC Caliber 50611 with 7-day autonomy and power reserve. It is hand finished with 66 jewels and runs at 18,800 vph.

The rotor comes in yellow gold with the "Probus Scafusia ? seal. The functions include hour, minute, small seconds and perpetual calendar which features date, day, month, year and moonphase.

The three piece 18K pink-gold or yellow-gold, or platinum (limited to 250 pieces) case comes with a diameter of 44.2mm at a thickness of 15.75mm.

With curved sapphire crystal and a pink-gold-plated crown, the back is fastened by 6 screws displaying the movement via a sapphire crystal. It is water resistant to 3atm (30m).

Taking cue from the 18k pink gold with black dial, it is equipped with power reserve sector argente and the subdials are decorated with circular beads and embossed with dore Arabic numerals along with hollowed minute track.

All these are rhodium-plated and come with pink-gold leaf-style hands. The indications are as follows: the date and power reserve sits at 3, with the month at 8.

The 4-digit year lies between 7 and 8 with small seconds and day at 9. The moonphase which is of the Northern and Southern Hemisphere sits at 12.

It has hand-stitched crocodile leather strap with double fold-over clasp finished in matching metal. There are also yellow gold with silvered dial or in platinum with silvered dial, and is limited to 250 pieces.

More Information: IWC