Credits: Article and images by Cheryl Chia @ Revolution Watch Magazine. See the original article here - https://revolutionwatch.com/patek-phillipe-nautilus-5811g-5990-5712/
Inside the watch is the self-winding 26-330 SC, which powered the ref. 5711 from 2019 onwards, succeeding the cal. 324 SC in the lineage. It features a hacking seconds function and most notably, a nickel-phosphorous third wheel with a reactive tooth profile made using LIGA (the German acronym for Lithographie, Galvanoformung, Abformung), an additive micro-electro-mechanical technique that allows for extremely precise fabrication of metal parts. As with all In-house central seconds calibers in the lineage after the Jaeger-LeCoultre 920 in the ref. 3700, it is the third wheel that drives the pinion for the center seconds. As the pinion is outside the power flow of the gear train, there is a tendency for the seconds hand to flutter. The new sprung teeth address the issue of backlash by enabling fuller penetration of teeth as they mesh, eliminating play.
Patek Philippe Nautilus Ref. 5811/1G
Movement: Caliber 26-330 S C, automatic, power reserve min. 35 hours – max 45 hours
Functions: Hours, minutes, seconds, date
Case: White gold, 41 x 8.2mm, water-resistant to 120M
Strap: White gold, patented fold-over clasp with lockable adjustment system
Alongside the ref. 5811, Patek Phillippe has also unveiled the ultimate iteration of the Travel Time Chronograph ref. 5990 that is bound to set the watch sphere aflame. Since its introduction in 2014, the ref. 5990 has only been produced in steel with a black gradient dial or rose gold with a blue sunburst dial. Now the reference is finally being offered in a classic combination of steel with a blue sunburst dial with a subtle black gradation to its periphery.
Credits: Article and images by Cheryl Chia @ Revolution Watch Magazine. See the original article here - https://revolutionwatch.com/patek-phillipe-nautilus-5811g-5990-5712/
