The Romain Gauthier Logical One Final Editions were announced in 2021 in two materials: 20 titanium watches and 20 white-gold watches. Their reported launch prices were CHF 134,000 and CHF 148,000, respectively. Those are historical announced prices, not verified current asking prices; the launch report said production would continue through 2023 and then end.
Logical One Final Editions specifications
The figures below were published in Monochrome Watches’ 2021 launch report. They describe the Final Editions, not independently measured performance.
| Specification | Reported details |
|---|---|
| Case | 43 mm diameter; 14.2 mm thick; brushed titanium or polished white gold |
| Crystal and water resistance | Sapphire crystal front and back; 30 m water resistance |
| Controls | Winding pusher at 9 o’clock; time-setting crown at 2 o’clock |
| Display | Off-centre hours and minutes; small seconds; power-reserve indication on the movement’s reverse |
| Dial | Oven-fired white enamel with blued details, or oven-fired black enamel with silver-coloured details |
| Movement | In-house, hand-wound Logical One calibre; reported diameter 35.5 mm and thickness 1.5 mm |
| Frequency and reserve | 28,800 vibrations per hour (4 Hz); 46-hour power reserve |
| Construction | 359 components; 63 jewels, including 26 in the chain |
| Strap and buckle | Handmade alligator-leather strap; pin buckle in titanium or white gold to match the case |
| Edition size | 20 pieces per case material; bespoke options were included within each material’s allocation |
| Final Edition details | Baguette-cut diamond and numbered applique on the back |
How the titanium and white-gold versions differ
The reported distinctions are the case material and finish, the matching buckle, and the 2021 announced price. The dimensions, movement, functions, water resistance and 20-piece allocation were shared.
| Version | Case finish | 2021 announced price | Edition size |
|---|---|---|---|
| Titanium | Brushed titanium | CHF 134,000, as reported at launch in 2021; taxes and current market value are not established | 20 pieces |
| White gold | Polished white gold | CHF 148,000, as reported at launch in 2021; taxes and current market value are not established | 20 pieces |
The launch report said bespoke options fit within each material’s 20-watch run, rather than adding to the edition size. It also described a titanium or white-gold pin buckle to match the case.
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- MANUAL WINDING: Designed for precision, this hand-wound watch is powered by the exclusive H-50 movement, offering an extended 80-hour power reserve for reliable performance.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- BUILT FOR ADVENTURE: Featuring a 38mm stainless steel case, a black dial and textile strap, this watch combines durability and functionality. With Super-LumiNova and sapphire crystal, it’s ready to tackle your outdoor challenges.
- PREMIUM MATERIALS: Textile strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
How the Logical One constant-force mechanism works
The hand-wound movement uses a chain-and-fusee arrangement intended to compensate for the changing force of the mainspring as it unwinds. The chain links the barrel to a snail-shell-shaped cam. As spring torque falls, the cam’s changing radius alters the leverage applied through the chain.
In the Logical One layout, the cam, chain and barrel wheel sit on the same plane. The launch report says synthetic ruby links between steel links reduce friction. This explains the design’s intended force compensation; it is not a reported accuracy test or a quantified timekeeping result.
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- MANUAL WINDING: Designed for precision, this hand-wound watch is powered by the exclusive H-23 movement, offering an extended power reserve for reliable performance.
- WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- BUILT FOR ADVENTURE: Featuring a 40mm stainless steel case, a white dial and stainless steel bracelet, this watch combines durability and functionality. With Super-LumiNova and sapphire crystal, it’s ready to tackle your outdoor challenges.
- PREMIUM MATERIALS: Stainless steel bracelet with folding clasp offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
The calibre runs at 28,800 vibrations per hour (4 Hz), has a reported 46-hour power reserve, and contains 359 components and 63 jewels, 26 of them for the chain. Monochrome describes hand-finishing that includes snailing, frosting, straight and circular graining, and rounded bercé bevels.
What “Final Editions” means for availability
Monochrome Watches’ Robin Nooy reported on 4 May 2021 that a couple of pieces would be delivered that year, with the remaining watches to be manufactured in 2022 and 2023, after which the model would be discontinued. That launch timeline does not establish current retail stock, resale availability or present-day prices.
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- MANUAL WINDING: Designed for precision, this hand-wound watch is powered by the exclusive H-23 movement, offering an extended power reserve for reliable performance.
- WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- BUILT FOR ADVENTURE: Featuring a 40mm stainless steel case, a white dial and green textile strap, this watch combines durability and functionality. With Super-LumiNova and sapphire crystal, it’s ready to tackle your outdoor challenges.
- PREMIUM MATERIALS: Textile strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
The same 2021 report says the Logical One debuted in 2013 and received that year’s GPHG Men’s Complication Watch Prize. Fondation Haute Horlogerie describes the fusee-and-chain constant-force system as a feature of the earlier Logical One Enraged; that description concerns the Enraged variant, not these Final Editions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Water resistance and service guidance
The manufacturer’s Logical One owner manual describes the watch as statically water resistant to 30 metres/100 feet, advises against vigorous swimming and diving, and recommends returning a Logical One to the manufacture for service at least every three years. It says an authorised retailer can help arrange service. This is general Logical One owner guidance; it is not a Final Edition-specific warranty or a confirmation of current service pricing.
Quick Recap
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- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- BUILT FOR ADVENTURE: Featuring a 42mm stainless steel case, a black dial and leather strap, this watch combines durability and functionality. With Super-LumiNova and sapphire crystal, it’s ready to tackle your outdoor challenges.
- PREMIUM MATERIALS: Leather strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
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.
