Lebois & Co’s Heritage Small Seconds is a three-reference collection built around a 37.8 mm steel case, a small-seconds display and the brand’s modern interpretation of its 1940s and 1950s designs. The inaugural Founder’s Launch distinguishes the Baton, Numeral and Script chiefly through their dial treatments; all share the listed automatic, COSC-certified LC-350 movement and 56-hour power reserve. The official launch page currently shows the models out of stock, and the brand has not confirmed when they will be available again.
One collection, three dial designs
Lebois & Co presents the Heritage Small Seconds as a return to the small-seconds watches it made in the 1940s and 1950s. The company’s account of the Numeral’s revival points to a watch sold at Christie’s in 2012; its Script design story says a vintage white-dial chronograph with Breguet-style numerals seen at a Monaco auction in 2018 helped set the direction with designer Matthieu Allègre. These are the brand’s stated inspirations, rather than independently verified archival histories.
| Variant | Reference | Dial and character | Launch-reported strap |
|---|---|---|---|
| Baton | 641.480 | Blue sunray dial, applied baton indexes and an azurage small-seconds register. The most restrained option of the three. | Blue leather |
| Numeral | 641.500 | Black sandblasted dial with printed Arabic numerals and an azurage small-seconds register. Full Arabic numerals are the defining feature on the official page. | Brown suede |
| Script | 641.407 | Silver sandblasted dial, applied Breguet-style numerals, an azurage small-seconds register and a script “Chronomètre” signature. | Gray leather |
Fratello reported the strap colors and materials, along with quick-release spring bars and steel pin buckles, for the launch models. These are launch-era details, not a guarantee about any future stock or production batch. Sources: Fratello Watches; Lebois & Co’s Founder’s Launch page and Numeral product page.
Shared case and movement specifications
Lebois & Co lists the following specifications for the collection. The published case height is 8 mm without the crystal and 10.5 mm including its double-domed sapphire.
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- Powered by the In-House Orient F6222 Automatic/Hand-Winding/Hacking Movement
- 38.4mm Case Diameter, 44mm Lug to Lug Length
- 20mm Lug Width
- Domed Mineral Crystal
- 30 Meter Water Resistance
| Component | Published specification |
|---|---|
| Case | Polished 316L stainless steel; 37.8 mm diameter; 45.5 mm lug-to-lug |
| Thickness | 8 mm without crystal; 10.5 mm including double-domed sapphire crystal |
| Lug width | 20 mm |
| Caseback | Screwed |
| Water resistance | 5 ATM / 50 m, as published by the brand |
| Functions | Hours, minutes and small seconds |
| Movement | Lebois & Co LC-350, mechanical self-winding, COSC certified |
| Power reserve | 56 hours |
| Frequency | 28,800 vibrations per hour |
| Jewels | 31 |
The 5 ATM / 50 m figure is the brand’s stated rating; the available product information does not spell out activity guidance, so it should not be read as a promise of suitability for every kind of swimming or diving. Specifications are listed on the official collection page and the Numeral product page.
What is known—and unsettled—about the LC-350 base
Lebois & Co identifies the caliber as the LC-350 and publishes its COSC certification, 56-hour reserve and 28,800-vph frequency. Independent launch coverage disagrees about the underlying base: Fratello identifies a Sellita SW300 base, while Monochrome identifies a Sellita SW360-1. Without a clarifying current technical document from the brand, the base-caliber identification remains unsettled.
Rank #2
- Ultra-Easy Reading: 38mm large dial, 12/24-hour dual display, luminous hands & red second hand for precise time and pulse reading
- High-Quality Movement: Premium quartz movement for accuracy; 30m water resistance (suitable for daily hand washing/splashes only – NOT for swimming, diving, or showering)
- Comfort & Durability: Soft silicone strap with quick-release buckle for easy cleaning, fits 16-19cm(6.3-7.5 inches) wrists
- Multi-Color Options: Versatile colors, minimalist design for both men and women, ideal for professional and daily use
- Warranty Guarantee: For any issues, contact us through the Amazon(Find the order of our product → Enter the order details page → Click "Contact Seller") – we’ll resolve your problems within 24 hours. "Customer first" is our core corporate culture
Sources: Fratello Watches; Monochrome Watches.
Price and availability: the launch is closed
As checked in 2026, the official Founder’s Launch page displayed €2,650 for each inaugural reference and marked all three out of stock. The official Numeral product page separately displayed €2,500, stated that its 100-piece Founder’s Launch pre-order was closed, and said future availability would be announced in due course. These page-specific figures differ, so neither should be treated as a confirmed current price for a new order.
For context, Fratello and Monochrome reported a €2,200 launch-era retail price in 2025. The official pages’ estimate of delivery from August 2026 was an estimate for the inaugural series; it does not establish that deliveries took place or that orders have reopened. The Numeral page provides no reopening date.
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- Powered by the In-House Orient F6222 Automatic/Hand-Winding/Hacking Movement
- 38.4mm Case Diameter, 44mm Lug to Lug Length
- 20mm Lug Width
- Domed Mineral Crystal
- 30 Meter Water Resistance
Check the official launch page and Numeral page for current status before making plans to buy. The launch-era price reports are in Fratello and Monochrome.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which version stands out?
- Choose the Baton’s design direction if applied baton indexes and a blue sunray finish are more appealing than a full numeral dial.
- Look to the Numeral for the most direct reading of the time through printed Arabic numerals and a black sandblasted surface.
- Consider the Script if Breguet-style numerals and the calligraphic “Chronomètre” signature are the point of the collection for you.
The shared 37.8 mm diameter and 45.5 mm lug-to-lug measurement provide the same stated case dimensions across the range; dial preference is the clearest distinction in the published descriptions. Strap colors above reflect Fratello’s launch report, not a confirmed specification for future availability.
Quick Recap
Best Value
- Powered by the In-House Orient F6222 Automatic/Hand-Winding/Hacking Movement
- 38.4mm Case Diameter, 44mm Lug to Lug Length
- 20mm Lug Width
- Domed Mineral Crystal
- 30 Meter Water Resistance
Rank #4
- Orient Caliber F6724 Automatic, Hand-winding, Hacking (Seconds-hand Halt) Movement
- Case Diameter 38.4 mm | Lug to Lug Length 44 mm | Lug Width 20 mm | 12.5 mm Thick
- Date | Exhibition Caseback
- Stainless Steel Case | Domed Mineral Crystal | Calf Leather Strap
- 30 Meter Water Resistance
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.




