The Louis Erard x Label Noir Le Régulateur is a 42 mm automatic watch built around a regulator dial: hours appear in a subdial at 12 o’clock, minutes are read from the central hand, and seconds sit at 6 o’clock. Its defining design contrast is black-on-black finishing punctuated by acid-green details, including the seconds hand. The official model name is Le Régulateur Louis Erard x Label Noir, reference 85237NN57.BAT02.
What is the Louis Erard x Label Noir watch?
It is a limited-edition collaboration between Louis Erard and Label Noir, which Louis Erard describes as a Geneva-based customisation atelier. The 178-piece edition pairs the watchmaker’s regulator layout, fir-tree hands and case design with Label Noir’s focus on colour. Louis Erard says the final design developed through exchanges, proposals and multiple prototypes; the brand’s collaboration article sums up the process: “Without teamwork, Le Régulateur Louis Erard x Label Noir wouldn’t exist.”
The look depends on contrasts in sheen as much as colour: the sandblasted black PVD-coated case and satin-finished black dial sit alongside a polished black lacquer hour counter, while green accents draw attention to the seconds display and caseback. This describes the design as presented by Louis Erard, rather than a claim about how easy the dial is to read in everyday conditions.
How does the regulator watch display the time?
Unlike a conventional watch with hours, minutes and seconds indicated from a shared center, this regulator separates them. The hour counter is at 12 o’clock, the central hand indicates minutes, and a separate subdial at 6 o’clock displays seconds. The layout makes the central minutes hand the main time indication, with the two smaller counters handling hours and seconds.
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#1 Best Overall
- Suitable for NH35/NH36/4R/6R watch movement
- Green luminous effect makes it glow at night or at the dark places.
- High precision machining, stable and reliable, with fine workmanship and exquisite appearance
- Reasonable design makes it easy and convenient to install and remove, and it is a wonderful replacement for broken or old one
- Multiple colors to choose to show your own personality and match your watch
What are the specifications?
| Specification | Louis Erard Le Régulateur x Label Noir |
|---|---|
| Reference | 85237NN57.BAT02 |
| Case | 42 mm sandblasted stainless steel with black PVD coating |
| Dial and hands | Black satin-finished dial with white and green transfers; polished black lacquer hour counter; rhodium-plated hour and minute hands; green-lacquered seconds hand |
| Movement | Automatic Sellita SW266-1 |
| Power reserve | Approximately 38 hours, according to Louis Erard |
| Crystal | Domed sapphire with anti-reflective treatment on both sides |
| Caseback | Transparent with green tint |
| Water resistance | 5 bar / 50 m / 165 ft |
| Strap and buckle | Black nylon strap with green stitching and calf-leather lining; black PVD-coated pin buckle |
| Strap change | Quick-change spring bars; lug width is not stated in the retrieved product details |
| Edition | 178 pieces |
These are manufacturer-stated specifications. They do not establish independent timekeeping results, tested water resistance or long-term reliability. The 50 m rating is a published specification, not evidence of a separate test of this particular watch.
How much is the Louis Erard x Label Noir Le Régulateur?
Louis Erard lists the watch at CHF 3,500 excluding tax on its product page accessed in 2026. That is the brand’s listed price, not a verified current marketplace or resale price.
Rank #2
- Compatibility: Compatible with NH35, 4R35, and 6R15 automatic watch movements for precise alignment.
- Durable Brass Construction: Made from quality brass with a sleek black finish for long-lasting use.
- Precise Dimensions: 28.5 mm diameter with date window at 3.8 position, ensuring accurate date display.
- Easy Replacement: Direct-fit design allows simple installation into compatible watch cases.
- Stylish Design: Black dial plate enhances the aesthetic of custom or replacement watch builds.
Is the Louis Erard x Label Noir limited edition still available?
Louis Erard’s product page displayed a waiting list when accessed in 2026. That establishes the status of the brand’s own listing at that time, not whether every retailer has sold out or whether a particular seller has stock. Check directly with Louis Erard or a retailer for current availability; no resale value or current third-party price is established here.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to know before buying
- Use the full model name or reference 85237NN57.BAT02 when checking listings, so you can distinguish this version from other Louis Erard regulator models.
- If you plan to replace the supplied strap, confirm the lug width with the seller or brand first. The strap has quick-change spring bars, but the product details cited here do not state its width.
- The published specifications and design account are from Louis Erard; they do not provide a firsthand assessment of fit, comfort, legibility or accuracy.
Sources: Louis Erard product listing; Louis Erard collaboration article; Monochrome Watches.
Quick Recap
Best Value
- This watch dial is Compatible with NH35 and NH36 movements,compatible with Seiko SKX007 and SKX009 models.
- The dial measures 28.5mm in diameter and features a 2mm central aperture for accurate hand alignment.
- Made from copper material providing durability and stable and durable
- The wave pattern adds a unique and elegant touch to customized watch project.
- Easy installation, can be replaced directly without adjustment, great compatibility and high reliability.
Rank #4
- Suitable for NH36/NH36A/4R36 Watch Movement Accessories
- Strong luminous effect makes it glow at night or at the dark places.
- High precision machining, stable and reliable, with fine workmanship and exquisite appearance
- Reasonable design makes it easy and convenient to install and remove, and it is a wonderful replacement for broken or old one
- Multiple colors to choose to show your own personality and match your watch
Rank #3
- Durable Construction: Crafted from copper for reliable strength and ensuring long-lasting performance in watch repairs
- Precision Sizing Compatibility: Designed with standard dimensions to fit most wristwatch dials offering seamless replacement for popular watch models
- Organized Storage Solution: Includes compartmentalized plastic box with 12 slots holding 5 pieces each for neat organization and easy part identification
- Professional Repair Efficiency: Ideal for watchmakers and hobbyists to quickly replace broken dial feet restoring timepieces to optimal functionality without specialized tools
- Complete 60-Piece Assortment: Provides ample inventory of spare parts in one package eliminating the need for multiple purchases during repair projects
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
