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The Louis Moinet Astronef Techno pairs a dial made from an engraved silicon wafer with two orbiting satellite tourbillons. Reference LM-105.20.01 is described by the brand as a unique timepiece, and its current product page is marked “Sold.” Its most striking contrast is between a surface patterned like microelectronics and a fully mechanical display moving above it.
What is the Astronef Techno?
The Astronef Techno is a hand-wound mechanical watch built around a kinetic display: two satellite tourbillons revolve around the dial on separate levels. The model carries forward the Astronef line’s twin-tourbillon spectacle, while introducing a silicon-wafer dial as its distinctive visual feature. Louis Moinet identifies it as reference LM-105.20.01 and calls it a unique timepiece. Louis Moinet’s product page currently displays “Sold.”
What is the silicon-wafer dial?
The dial is a silicon wafer engraved with microelectronic circuits. It serves as a graphic surface and backdrop for the moving watch mechanism; the circuit pattern does not mean the watch contains an operational semiconductor or electronic display. Louis Moinet says the engraved surface catches light as the wrist moves, giving the dial a changing appearance beneath the orbiting cages. The official model page and its presskit describe the material and visual effect.
How do the two tourbillons move?
The two tourbillons travel around the dial on different levels. Their cages rotate at different rates: one completes a rotation every five minutes and the other every ten minutes. A central differential connects their motion. The brand says the cages cross paths 18 times an hour—once every three minutes and 20 seconds—and describes them as aligning at that interval. This describes the display’s choreography, not an independently established accuracy advantage.
#1 Best Overall
- 【High-Precision Quartz Movement】The quartz watch is adopted premium quartz movement, delivering exceptional timekeeping accuracy, eliminating the hassle of frequent time adjustment. The long-lasting battery supports continuous use, keeping you perfectly punctual for business meetings, daily commutes, and all important occasions.
- 【Solid & Durable Build】The wrist watch is crafted from premium solid stainless steel, featuring scratch resistance, corrosion resistance and wear resistance,can withstand daily wear and tear. The watch lens is made of hardened mineral glass, featuring high clarity and scratch resistance, ensuring long-lasting durability.
- 【Reliable & Practical Performance】The men's watch features reliable 30m (90ft) water-resistant performance, effectively protecting against daily splashes, hand washing, rain and sweat, making it perfect for daily wear and casual use. The watch hands are luminous, allowing the wearer to easily read the time in the dark.
- 【Multifunctional Subdials & Date Display】The analog watch is equipped with independent second and minute chronograph sub-dials for accurate split-time recording, a dedicated 24-hour format panel to intuitively distinguish AM/PM without conversion, and a clear, easy-to-read independent date window, delivering accurate timekeeping and all-scenario convenience
- 【Classic Size & Perfect Gift】The men's quartz watch specially designed with a case diameter of 42mm suits most male wrist sizes. The minimalist and timeless business-casual style perfectly matches formal suits, daily casual wear, and outdoor outfits, making it an ideal gift for birthdays, anniversaries, Father's Day, Christmas, and business gifting.
What movement powers the display?
The hand-wound LM105 calibre is specified by Louis Moinet with 471 components and 56 jewels. Its frequency is 21,600 vibrations per hour, or 3 Hz, and its stated power reserve is 48 hours. Each tourbillon has its own barrel spring. Winding and time-setting are selected using a control integrated into the caseback; the crown is not pulled out to switch modes. These specifications are listed on the official product page.
What are the case dimensions and materials?
The case combines a sapphire container with a Grade 5 titanium frame. The brand describes openworked lugs and case middle, a sapphire dome, and a welded inner bezel ring. Its dimensions distinguish the 43.5 mm titanium base from the 41.6 mm sapphire top. Listed water resistance is 10 metres. The watch is fitted with a 24 mm alligator strap and folding clasp. These are the manufacturer’s published specifications, not a recommendation for water use.
Rank #2
- 【Precise Timekeeping & Self-Winding】The automatic watch is equipped with a high-quality movement, every component of this watch is meticulously manufactured and calibrated to minimize friction and enhance operational stability. The Self-winding movement delivers a consistent supply of power by the natural movement during daily wear, ensuring precise and reliable timekeeping.
- 【Solid & Durable Build】The analog watch is crafted from premium solid stainless steel, featuring scratch resistance, corrosion resistance and wear resistance,can withstand daily wear and tear. The mechanical watch lens is made of hardened mineral glass, featuring high clarity and scratch resistance, ensuring long-lasting durability.
- 【Multi-Functional Calendar Display】The men's wrist watch features a complete calendar display that clearly shows the year, month, date and day of the week. No need to check additional calendars — a quick glance at your wrist keeps you informed for easier daily scheduling, work planning and life organization.
- 【Practical & Reliable Performance】The men's watch features reliable 30m (90ft) water-resistant performance, effectively protecting against daily splashes, hand washing, rain and sweat, making it perfect for daily wear and casual use.
- 【Classic Size & Perfect Gift】The automatic mechanical watch specially designed with a case diameter of 42mm suits most male wrist sizes. The minimalist and timeless business-casual style perfectly matches formal suits, daily casual wear, and outdoor outfits, making it an ideal gift for birthdays, anniversaries, Father's Day, Christmas, and business gifting.
How much did the Astronef Techno cost?
Two launch-era reports published in February 2024 gave a price of CHF 330,000. Monochrome Watches reported CHF 330,000 on February 16, 2024; Quill & Pad reported CHF 330,000 excluding taxes on February 21, 2024. These are historical launch-era figures, not a current quote.
The brand’s current page says “Sold,” but the available information does not establish whether the watch has since been offered on the secondary market or what a present asking price might be. Anyone pursuing a purchase should confirm status and price directly with the brand or a specialist seller.
Rank #3
- 【High-Precision Quartz Movement】The quartz watch is adopted premium quartz movement, delivering exceptional timekeeping accuracy, eliminating the hassle of frequent time adjustment. The long-lasting battery supports continuous use, keeping you perfectly punctual for business meetings, daily commutes, and all important occasions.
- 【Solid & Durable Build】The wrist watch is crafted from premium solid stainless steel, featuring scratch resistance, corrosion resistance and wear resistance,can withstand daily wear and tear. The watch lens is made of hardened mineral glass, featuring high clarity and scratch resistance, ensuring long-lasting durability.
- 【Reliable & Practical Performance】The men's watch features reliable 30m (90ft) water-resistant performance, effectively protecting against daily splashes, hand washing, rain and sweat, making it perfect for daily wear and casual use. The watch hands are luminous, allowing the wearer to easily read the time in the dark.
- 【Multifunctional Chronograph & Date Display】The analog watch is equipped with triple-eye chronograph dial for timing control in various occasions. The clearly marked date window at the dial allows you to check the date easily at any time, combining fashion and practicality to meet your daily wearing needs.
- 【Suitable Size & Perfect Gift】The men's quartz watch specially designed with a case diameter of 40mm suits most male wrist sizes. The elegant combination of rose gold and white is versatile. The minimalist and timeless business-casual style perfectly matches formal suits, daily casual wear, and outdoor outfits, making it an ideal gift for birthdays, anniversaries, Father's Day, Christmas, and business gifting.
How is it different from the Only Watch ART-TECH?
Louis Moinet has shown another silicon-wafer-dial watch, ART-TECH, reference LM-135.20.OW, for Only Watch. It is a separate model, not the Astronef Techno: Only Watch describes ART-TECH as having a single flying tourbillon, whereas the Astronef Techno has two satellite tourbillons orbiting the dial.
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