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NEW RELEASE Audemars Piguet Turns to Stone with Malachite Royal OaksTwo Royal Oak Selfwinding references pair 18-carat yellow gold with natural malachite dials, one at 41 mm and one at 37 mm.  Image: Audemars Piguet Source: Audemars Piguet Audemars Piguet has put natural malachite into the Royal Oak Selfwinding line, across two yellow gold references: the 41 mm 15513BA.OO.1320BA.01 and the 37 mm 15553BA.OO.1356BA.04. Both set a green stone dial inside the collection’s familiar octagonal case, with 18-carat yellow gold hands and hour markers picking up the case and integrated bracelet. Stone changes the personality of a Royal Oak more than a colour swap does. Malachite is banded and layered, so the pattern varies from one piece to the next, and that natural irregularity plays against a design built entirely on straight lines and repeated geometry. Audemars Piguet frames both watches around the artistry of stone dials, and the pitch holds up: the case supplies the discipline, the dial supplies the variation. The two sizes run different movements. The 41 mm carries the selfwinding Calibre 4309 with a 70 hour power reserve, the 37 mm the Calibre 5909 at 60 hours. Both beat at 4 Hz, drive hours, minutes and centre seconds, and sit behind a glareproofed sapphire caseback, with water resistance of 50 m. Audemars Piguet does not publish a price for either reference. Royal Oak variants arrive constantly and most of them are a finish or a colour. This one is closer to a material argument, and it is a more interesting one, because no two of these dials will read quite the same in the light. WATCH SPECIFICATIONS
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Category: Spots
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Audemars Piguet Turns to Stone with Malachite Royal Oaks
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Isotope Watches: A British Independent That Prefers New Ideas to Vintage Repeats
MICROBRAND
Isotope Watches: A British Independent That Prefers New Ideas to Vintage Repeats
Founded in Henfield by José and Joana Miranda, Isotope has built a clear identity around unconventional displays, teardrop motifs, and limited runs that rarely look like anything else in the microbrand lane.
Image: source
Many young watch brands begin by looking backward. Isotope started with a different premise: take something familiar and rearrange it into a new form. The name comes from the scientific term “isotope,” and that idea of variation within a known framework has shaped the brand since its launch in 2016.
Isotope was founded by José and Joana Miranda, a Portuguese-English couple based in Henfield, England. According to Oracle Time’s profile of the brand, José came to the project as a collector who wanted a watch he could not find on the market, then worked with designer Vikenty Gryaznov to help define the look. That pairing matters, because Isotope did not enter the scene with a familiar field watch or another vintage diver. From the beginning, it aimed for a more distinctive visual language.
What Makes It Notable
The early statement piece was the Rider Jumping Hours, a watch that helped establish Isotope’s design identity. Its most recognizable feature was the repositioned jumping hour display at 6 o’clock, rather than the more common placement at 12. Around it sat the brand’s recurring teardrop form, part of what Isotope calls its Lacrima design language.
That shape has become Isotope’s calling card. It appears across the collection in apertures, markers, and display elements, giving the catalog a coherence that many microbrands never quite achieve. Even when the complications change, the watches still read as Isotope.
The brand has also shown a willingness to experiment with display formats beyond the usual microbrand formula. Reports from Oracle Time and coverage from Teddy Baldassarre have highlighted its use of rotating disc indications and more unusual dial treatments. Some specific technical claims around “world first” execution and certain dial materials should be treated cautiously unless confirmed by Isotope directly, but the broader point stands: this is a brand focused on original presentation rather than homage design.
Signature
A strong candidate for the definitive Isotope is the GMT 0°. Oracle Time highlighted it as a key expression of the brand’s style, and it is easy to see why. The teardrop motif is turned into the central visual architecture of the watch, shaping both the GMT display and the hour aperture, while a peripheral date keeps the dial balanced.
The published specs commonly associated with the GMT 0° include a customized Swisstech automatic movement and about 40 hours of power reserve, with pricing around £740 at launch (unconfirmed). Reported edition sizes include 49 pieces per colorway, with some rarer variants produced in even smaller numbers (unconfirmed). As with most Isotope releases, exact availability and current pricing are best confirmed on the brand’s own site.
At the more complicated end, the Chronograph Moonshot is one of Isotope’s more ambitious releases. Its chronograph display replaces familiar hand based registers with rotating disc style indications, giving the watch a very different look in use. Depending on the edition, pricing has been reported in the roughly $2,500 to $3,340 range (unconfirmed), and movement details should be checked against the official product listing for the specific reference.
For a more accessible entry point, the HydriumX line brings the same house style to a colorful diver format. Oracle Time discussed editions such as the “Will Return” and Burnt Tangerine versions, noting limited production and sub-£500 pricing at the time. Isotope’s own pricing has also appeared higher for some versions, including figures in the mid-£500 range, so current retail should be verified before purchase.
Where To Find Them
The best place to track current releases is Isotope’s official website: isotopewatches.com
Because the brand works in small batches and limited colorways, stock can change quickly. If a particular model is the reason you are visiting, it is worth checking the official site first rather than relying on older reviews or launch coverage.
Isotope’s appeal is not just that it is independent. It is that it has chosen a harder route: building a recognizable design language of its own. In a corner of watchmaking crowded with familiar references, that still counts for a lot.
Sources: Oracle Time; Teddy Baldassarre; Isotope official website.
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Formex’s CEO Previews Three Essence 39 Upgrades in New Film
NEW VIDEO
Formex's CEO Previews Three Essence 39 Upgrades in New Film
A brief maker-channel preview ahead of a fuller reveal on August 27.
On August 24, Formex shared a short film featuring CEO Raphaël Granito. He walks through the brand’s motorsport-engineering roots, his family’s history in component manufacturing, and how the Essence grew out of a 43mm crowdfunded launch eight years ago. The description labels it Formex’s bestselling watch.
Three upgrades arrive August 27: a screw-down crown, Sellita’s SW200-2 Power+ (65-hour power reserve), and a patented butterfly clasp with 3mm of tool-free adjustment per side. Everything else remains unchanged, per Formex.
Not shown: references, price, dimensions, water resistance.
Source: announcement
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Patek Philippe Nautilus Reference 3700/1A: The Steel Watch That Changed Luxury in 1976
THIS WEEK IN WATCH HISTORY
Patek Philippe Nautilus Reference 3700/1A: The Steel Watch That Changed Luxury in 1976
A porthole, a bracelet, and a price tag that defied convention.
Image: source
In the 1970s, the Swiss watch industry was living through its worst nightmare. Cheap, accurate quartz movements from Japan were rewriting the rules, and the old houses of Geneva faced a question they had never had to answer: why would anyone pay for a mechanical watch made by hand when a battery kept better time for a fraction of the cost? Some firms folded. Others fled downmarket. A few decided the only way forward was to make the mechanical watch feel like an object worth wanting for reasons that had nothing to do with telling time.
Into that anxious moment came the Patek Philippe Nautilus, reference 3700/1A, which debuted in 1976. It was luxury in an unexpected material, sold at a price that made buyers do a double take.
The Watch
The Nautilus was drawn by Gerald Genta, the same designer who had given Audemars Piguet its Royal Oak earlier in the decade. Genta famously claimed he sketched the design in minutes during the Basel fair. Whether or not the napkin is real, the design certainly is: a rounded octagonal bezel with two small “ears” flanking the case, joined by visible hinges that recall a ship’s porthole. The dial featured horizontal embossed grooves and a deep blue-black tone.
Named after Captain Nemo’s submarine, the Nautilus was a bold move for Patek Philippe. What made the 3700/1A radical was not just its shape, but Patek’s ambition to sell steel at gold-watch prices. This was a large steel sports watch from one of the most conservative names in horology. Patek’s own advertising leaned into the paradox, presenting the Nautilus as a watch a discerning buyer would wear with a diving suit or a dinner jacket. The integrated bracelet flowed from the case without visible lugs, a detail that felt modern in 1976 and still defines the category today.
Specifications
Reference 3700/1A Year of debut 1976 Designer Gerald Genta Case material Stainless steel Case diameter 42mm Case construction Two-part case with porthole-style bezel and lateral “ears” Dial Blue-black with horizontal embossed grooves Movement Self-winding caliber 28-255C, based on a Jaeger-LeCoultre ébauche and finished by Patek Philippe Bracelet Integrated steel Legacy
The Nautilus did not sell in vast numbers at first. Steel Pateks were still an oddity in 1976, though not entirely unprecedented, and the world took time to understand what Genta had made. That patience has been richly rewarded. The Nautilus is now among the most sought after luxury sports watches in existence, and later references, particularly the discontinued 5711, have commanded waiting lists and secondary market premiums that dwarf their retail prices. Today, the original 3700/1A is a blue chip vintage piece, quietly commanding sums that would have astonished its first owners.
Closing
The Nautilus stands as proof that the watch industry survived quartz not by competing on accuracy but by refusing to. Patek Philippe bet that desire outlasts technology, and the porthole on your wrist is the receipt. The gamble of 1976 now looks prescient.
Source: patek.com
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© Spot.Watch · This Week in Watch History
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Citizen’s Satellite Wave GPS F990: Time by the Stars, Told in 2018
LOOK BACK
Citizen’s Satellite Wave GPS F990: Time by the Stars, Told in 2018
Pulled from Citizen’s own channel, this throwback clip revisits the Satellite Wave GPS F990, the brand’s flagship take on satellite-synced timekeeping. It’s a look at how Citizen framed the technology behind the piece back when it launched.
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IWC Turns Watchmakers Into Musicians for Swiss National Day
LOOK BACK
IWC Turns Watchmakers Into Musicians for Swiss National Day
Straight from the IWC Schaffhausen archives, this 2013 clip finds the manufacture in an unusually playful mood: after months of secret rehearsals, staff assembled their own orchestra to mark Swiss National Day. It’s a lighthearted glimpse at the hidden talents behind the bench.
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Hamilton Posts a Short Ventura Film Called “An Icon Since 1957” With One Unexplained Reference Code
NEW VIDEO
Hamilton Posts a Short Ventura Film Called "An Icon Since 1957" With One Unexplained Reference Code
A brand-produced clip about the Ventura, heavy on style, light on specs.
Hamilton posted the video to its YouTube channel on August 21, 2026. The description reads “Just the Ventura” and leans into the brand’s own phrasing: “Iconic triangular lines, futuristic attitude since 1957, a bold classic that still turns heads.”
The real curiosity comes at the end: the code H24301941, paired with a shortened link and #hamiltonwatch. Hamilton does not say what it denotes.
Captions are disabled, so there is no transcript. No caliber, no case dimensions, no price, no limitation, no stated launch. For now, it’s heritage marketing, nothing more.
Source: announcement
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IWC Puts Its Museum Curator On Camera For The Ingenieur SL ‘Jumbo’ Ref. 1832 (captioned elsewhere as 8032)
NEW VIDEO
IWC Puts Its Museum Curator On Camera For The Ingenieur SL 'Jumbo' Ref. 1832 (captioned elsewhere as 8032)
An episode of IWC's 'IWC. Curated.' pre-owned series, a rare case of a major maison spotlighting a reference it no longer produces.
Museum curator David Seyffer and sales manager Jule Schäfer discuss the Genta-designed Jumbo in IWC’s short film, released August 20. They trace the line’s origins as a tool for engineers in magnetic fields, highlighting the integrated bracelet and functional bezel screws.
What’s striking is what’s left unsaid. No movement specs, no case dimensions, no water resistance, no price. The magnetic-resistance rating and production estimate appear only in auto-generated captions, which also botch the reference number, so treat both as unconfirmed.
The brand speaking at length, the spec sheet conspicuously absent.
Source: announcement
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Rolex’s Latest Film Follows Dawa Yangzum Sherpa’s Life at Altitude
NEW VIDEO
Rolex’s Latest Film Follows Dawa Yangzum Sherpa’s Life at Altitude
The new entry in Rolex’s ongoing documentary series turns to Dawa Yangzum Sherpa, the first Nepali woman to summit all fourteen of the world’s 8,000-metre peaks. She reflects on a career spent breaking barriers for women in alpinism and what it means to build a life among the highest mountains on earth.
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Henry Archer’s Vesterhav Ultraviolet: A Mother-of-Pearl Mosaic in Motion
NEW VIDEO
Henry Archer's Vesterhav Ultraviolet: A Mother-of-Pearl Mosaic in Motion
The Danish independent's channel shows the watch, lists its specs, and omits the price.
Henry Archer’s Vesterhav Ultraviolet film, posted August 18, shows a dial built from mother-of-pearl segments in a mosaic. The maker notes it shifts between blue and violet depending on light and angle.
The description lists key specs: 40 mm case, 47 mm lug-to-lug, 10.45 mm thick, 200 m water resistance, a “Premium 9015” automatic, and Super-LumiNova BL10 Grade X1 on hands and markers.
What’s missing: price, availability, or any mention of an edition limit. No captions accompany the film, leaving the description as the sole text.
Source: announcement
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