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When Patek Went Sideways.
Every family has that one rebel child. For Patek Philippe, it’s the Ellipse 3545—the model that took the brand’s most elegant shape and decided to turn it sideways.
The Ellipse was Patek’s design flagship in the late 1960s and ‘70s, the golden ratio translated into metal and dial. But the 3545 took that serenity and gave it a bit of swagger. The case stretches wider, more relaxed—like someone leaned back in a chair mid-conversation and realized they looked good doing it.
The dial is where the fun starts. Blue, but not the polite kind. Depending on the light, it shifts from deep navy to icy arctic tones, and the engraved linen texture gives it the kind of depth that makes you stare a little longer than necessary. The white gold hour markers are simple sticks, except for a single Roman XII up top—Patek’s equivalent of wearing sneakers with a suit.
Then there’s the bracelet. At first glance, it looks perforated, but it’s actually a tightly braided chain mesh crafted by none other than Gay Frères—the bracelet masters behind some of the most iconic designs in watchmaking history. The level of detail is absurd, each link catching the light like silk thread. Patek didn’t make these in-house; during this era, they collaborated with specialists like Gay Frères for cases and bracelets, resulting in some of the most refined metalwork ever to grace a wrist. Their hallmark proudly sits on the clasp, right beside Patek’s own.
Weighing in at 96.4 grams, it has that unmistakable heft that quietly reminds you it’s the real thing. Inside beats the manual Calibre 23-300—pure Patek mechanics from the golden age. Wind it, feel that buttery resistance, and you’re right back in the era when watchmaking was an art form rather than a race for specs.
The integrated bracelet fits wrists up to 7.5 inches with two micro adjustments, because even elegance should come with options.
The 3545 is the kind of watch that makes people look twice—not because it shouts, but because it’s effortlessly original. Sideways never looked this right.
In excellent vintage condition throughout.
18k white gold case shows light surface wear consistent with age.
Dial remains original and beautifully preserved with dynamic blue tones and intricate linen texture.
Caseback shows light wear, stamped hallmark visible and crisp.
Hands and crystal in excellent condition, minimal age visible under magnification.
Bracelet signed Gay Frères, tight with zero stretch, hallmarked and integrated without any kinks.
Manual-wound movement Cal. 23-300 serviced and running well.
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