The 98 calibre, which was manufactured from the mid-1930s for the hunter pocket watch, has been regularly improved by IWC for over 80 years. Since it is so ideally suited for large hand-wound wristwatches, it is no coincidence that it is very closely associated with the story of the Portuguese wristwatches. One of the highlights in the calibre’s history was the anniversary Portuguese wristwatch unveiled in 1993 with the 9828 calibre, which among other things featured a balance with shock-resistance. Combining an elongated index, on the one hand, with a modern Glucydur®* beryllium alloy balance on the other hand, the 98290 calibre used in the Portuguese F. A. Jones combines tradition and technological progress. Calibres from the 98000-calibre family are also found in some of the watches in the current IWC Vintage Collection as well as in the Portuguese Hand-Wound models and the Portuguese Tourbillon Hand-Wound.
*IWC Schaffhausen is not the owner of the Glucydur® trademark



















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8 comments
my precious :-)
What about this SS version with white gold indexes??? Would buy one in a second!
Anyone else want a single colour dial combination? I would love to see this with a silver dial and blue numerals like the 7 days and chrono.
The perfect timepiece!
A truly elegant and simple design; pure understated perfection. I am a very proud to own such a watch.
Noticed that the new SS handwound with silver dial does not have the beautiful grey subdial... is this out of production?
I just picked up the IW545408. A beautiful watch. And the movement is a gem. I cant stop watching it.
Mine is the 545405 & I Love it! Truly a beautiful and very accurate
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