It is a quality seal that was developed by Patek Philippe, that ensures that the watch has been made according to a strict link set of standards.The Daytona is a pretty unique watch. Placed in the context of 20th-century watchmaking, it sort of stands alone as a watch that is genuinely mechanically interesting, part of the collection of a top-tier brand, embedded in pop culture in countless ways, and, importantly, exists in too many variations for any one collector to amass. You can genuinely collect just Rolex Daytona watches and never run out of new things to find, new variations to enjoy, and new scholarship to uncover.The Speedmaster is already just a great all-around daily driver. Put a caliber 321 in it, and it's still a great daily driver with a little extra character and charm. John Mayer's "Look closer; look closer still" philosophy comes to mind. The Speedmaster is a watch that perhaps even folks outside the horological world would recognize, thanks to the moon connection and the fact that it's just a great "starter" watch.
I think it would also make it — dare I say it about a full-gold sports watch? — subtly link elegant…But nor Rolex, neither Omega made such watches in their regular collection.Caliber: Manufacture Caliber MT6552Functions: Hours, minutes, seconds, date, second timezone Diameter: 31.8mmThickness: 7.52mmPower Reserve: 70 hoursWinding: AutomaticFrequency: 4 Hz (28,800 vph)Jewels: 28COSC Chronometer Certified Additional Details: The second timezone can be adjusted in one-hour increments, date is instantaneously jumping, stop seconds for precise setting, silicon balance springBut there are two watches of recent history that made me think unholy thoughts. You know the type – if you're afflicted with the watch disease like I am. They make you say to yourself, "I would do anything for this watch. Anything." One of them is a small, precious metal time-only watch that looks like this. The other? Well, it's the Rolex Daytona Le Mans ref. 126529LN.
The second displays engravings of a solar calendar, the third glyphs of the days of the month, and the fourth the 250 days of the sacred year.The details could have made this modern version of the brand's pilot's watch into the perfect link Type XX.7mm lug-to-lug length and a forged carbon bezel showing the "S" and "SENNA" logos in yellow.

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