The world's most precise lunar phase wristwatch. The Portugieser Eternal Calendar has been officially recognized by Guinness World Records as the world's most precise lunar phase wristwatch. The Double Moon™ indication of this newly introduced watch boasts a theoretical deviation of just one day in 45,361,055 years, surpassing the previous world record by over 43 million years. Achieving this remarkable precision is attributed to a new reduction gear train featuring three intermediate wheels, which accurately aligns the duration of one calendar month with that of one complete lunar cycle.
Awesome watch and an Excellent Brand!! Out of almost every brand I talk about with their respective models, this is at the top of my choice. As far as a complication this is perfect. Horology at its finest and a true work of art. I follow the watch industry closely and watches are right at my heart, my oldest hobby. I think the best thing about being a horologist/specialist is talking to others about watches in general especially when I find an enthusiast/collector. Congrats IWC!!!
Thats a piece you can hand down to your grand-grand-grand.....-grand children for sure!
Such an incredible feat of engineering and high horology. Congratulations
#IWC
super watches.. when I first wore the 3706 I thought this watch is timeless.
I love it ❤️
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Associate Director Corporate Communications at IWC Schaffhausen I Communication I Entertainment Relations I Public Relations I Partnerships I Sustainability
3moOfficially Amazing ✔