Maen Lets Three Stone Dials Rewrite the Manhattan 37
The Maen Manhattan 37 Ultra-Thin Stone Dial Series comprises Snowflake Obsidian, Black Onyx and Golden Swan variants. Each puts a materially different natural surface inside the same 37 mm, 7.1 mm steel architecture, with initial availability from August 28 at €1,359.20 excluding taxes.
In brief. The stone dials work because Maen removes most of the usual dial furniture and lets an already thin, recognisable case act as a controlled frame for three materially different surfaces.[1] [2] [3] [4] [5] [6] [7] [8]
Details from every angle
Three Stones, One Manhattan Architecture
Maen has built the Stone Dial Series around three named materials: Snowflake Obsidian, Black Onyx and Golden Swan. Keeping all three inside the Manhattan 37 Ultra-Thin makes the comparison unusually controlled. The steel case measures 37 mm in diameter, 47.4 mm from lug to lug and only 7.1 mm thick. Because those dimensions, the integrated bracelet and the core dial layout remain common, the stone is not competing with a new case or complication for attention. Each surface can change the watch’s character while the surrounding architecture stays recognisably Manhattan.[1] [4] [6]
That restraint matters with stone dials, which can otherwise become an easy shorthand for novelty. Here the thin rectangular-influenced case and broad bracelet provide a disciplined frame. The watch does not need added texture, elaborate markers or a new display to announce the material. Instead, the series asks collectors to notice how pattern, depth and colour behave under the same geometry. Natural variation means no two examples will be visually identical, but the shared platform gives buyers a stable basis for choosing among the three rather than comparing fundamentally different watches.[1] [4]
Obsidian, Onyx and Golden Swan Change the Same Watch Differently
The exact names describe three distinct visual lanes. Snowflake Obsidian introduces a scattered pale pattern across a dark base, making mineral variation the most immediately visible. Black Onyx offers the quieter route, using a more uniform dark surface to emphasise the case and bracelet. Golden Swan moves in the opposite direction, bringing a warmer, lighter stone into the same steel frame. These are not interchangeable black, white and gold colourways painted onto conventional blanks. The material itself creates the surface, so variation is inherent to the series rather than a manufacturing inconsistency.[1]
The independent hands-on covered only Snowflake Obsidian, and its observations should not be stretched across the other two variants. That reviewed watch showed how strongly the pale inclusions can animate the dial, while the official collection assets establish Black Onyx and Golden Swan as members of the same series. The available evidence supports a comparison of documented materials and shared construction, not a claim that all three behave identically in changing light. Buyers should expect individual stone patterning and treat official photographs as examples, especially when selecting the more visibly variegated Snowflake Obsidian.[1] [7]
The D101 Preserves the Ultra-Thin Proposition
Below the decorative surface, the hand-wound La Joux-Perret D101 runs at 21,600 vibrations per hour and provides a 50-hour power reserve. The movement is central to the 7.1 mm case because manual winding avoids adding an automatic rotor above the calibre. That keeps the Ultra-Thin name tied to construction rather than typography. Fifty hours also gives the watch more than two days of stated reserve, a practical margin for a manually wound design even though the sources do not provide independent timing or reserve tests.[4] [5]
The movement choice creates a useful contrast with the dials. Stone supplies irregularity and visual variation, while the D101 and case establish repeatable mechanical proportions across the series. This balance prevents the material from turning the watch into pure ornament. Owners still receive a defined hand-wound calibre, a very thin steel case and an integrated bracelet rather than a stone disc inserted into a generic platform. The sources establish the dimensions and movement specifications, but they do not provide long-term accuracy, service or shock-resistance evidence for the finished watches.[4] [5] [6]
What the Snowflake Obsidian Hands-On Reveals
Fratello evaluated the Snowflake Obsidian version and described it as feeling substantial despite the 7.1 mm case. That observation helps separate thinness from fragility in perception. The integrated steel bracelet and hidden butterfly clasp give the watch a continuous metal structure, so its slim profile does not necessarily translate into an insubstantial presence. The watch is also rated to 100 metres of water resistance. This evidence belongs to the reviewed Snowflake example and the stated construction; it does not establish identical dial appearance or subjective wrist impressions for Black Onyx and Golden Swan.[6] [7]
The hands-on is most useful when kept specific. It supports the claim that the familiar Manhattan architecture can carry a visually active stone dial without losing its sense of solidity. It does not prove that every bracelet will fit every wrist equally well, or that the hidden butterfly clasp offers useful micro-adjustment. Nor can one sample establish how stone variation affects buyer satisfaction across the production. The review adds tactile context to Snowflake Obsidian, while the official collection page remains the source for the complete three-variant proposition.[1] [6] [7]
The Initial 300 Watches Are Only the First Run
The first release is limited to 100 examples of each dial, creating an initial total of 300 watches. The official launch price is €1,359.20 excluding taxes, with availability beginning August 28, 2026. Those terms define the first allocation, not the permanent ceiling of the series. Maen plans further production through a pre-order model after the initial 300 pieces. Collectors should therefore distinguish the numbered or limited first run from the broader availability strategy and avoid treating the material names as one-time designs without evidence.[2] [3] [8]
The later pre-order schedule has not been dated, so the commercial picture remains partly open. The known proposition is clear: three stone variants, 100 initial pieces each, a tax-exclusive launch price and an August 28 starting date. What happens after that depends on a future production timetable. For buyers, the decision is less about chasing a supposedly final opportunity than choosing the stone whose variability they genuinely want. The common case and calibre make the three watches comparable; the planned continuation means the first-run allocation should not be confused with permanent scarcity.[1] [2] [3] [8]
The Dial Brief view
The series works because the Manhattan 37 acts as a controlled frame. Collectors can compare Snowflake Obsidian, Black Onyx and Golden Swan without also adjusting for different movements or cases. The 7.1 mm architecture and D101 retain the watch’s disciplined identity, while the initial 100-piece allocation per dial adds a defined launch format without pretending later production will not exist.
What we know, and what remains unconfirmed
What we know, and what remains unconfirmed: natural stone means individual dial variation. Only Snowflake Obsidian was evaluated hands-on, the later pre-order schedule has not been dated, and no independent long-term accuracy, durability or bracelet-fit evidence is available.