RGM Model 151 Snoopy Flying Ace Review: Grand Feu Beagle
Grand Feu Beagle
Every so often a watch lands that you have to read twice to make sure you understood what the brand actually did. The RGM Model 151 Snoopy Flying Ace is one of those releases. RGM, the Pennsylvania based independent founded in 1992 by Roland G. Murphy and one of the most respected names in modern American watchmaking, has taken Charles M. Schulz’s most iconic aviation alter ego and fired him into a true grand feu enamel dial. This is believed to be the first time Snoopy has appeared on the front of a watch executed in this technique, and it is the first time we are covering RGM on Horologius.
The Model 151 has been one of the brand’s signature platforms for years, beloved for its thin bezel, oversized dial, and unusually wearable case profile. The Snoopy Flying Ace lands as the latest expression of that line, paired with the kind of dial work that very few brands in the world have the depth to execute. There are two dial variants to choose from: a multi-stage fired white grand feu enamel dial with Snoopy, his red doghouse, and surrounding clouds fired directly into the glass surface, and a more accessible matte light blue dial that captures the same composition in a different register.
Pricing reflects the gap between the two techniques. The matte light blue version starts at $3,950 in stainless steel and $4,950 in titanium. The grand feu enamel version sits at $8,950 in stainless steel and $9,950 in titanium. All four are powered by the same RGM-Sellita SW300-1 movement and built around the same Pennsylvania-made case.
A Grand Feu Dial wearing a beagle on the front
The headline variant is the white grand feu enamel dial, and it deserves the longest paragraph. Grand feu enamel is one of the oldest and most technically demanding dial techniques in watchmaking. Layers of vitreous enamel are brushed onto a metal blank, then kiln-fired at temperatures north of 800 degrees Celsius. The process is repeated through multiple firings, with each pass risking a crack, a bubble, or a discolouration that sends the entire dial back to the start. The reward is a glass-like white surface with a depth and permanence that no printed or lacquered dial can imitate.
What makes the Snoopy 151 genuinely novel is that the artwork itself is fired into the enamel. Snoopy in full Flying Ace regalia, his red doghouse tilted like the cockpit of a Sopwith Camel, the small cloud forms that frame the composition. None of this is applied or printed after the fact. It is part of the enamel surface, fused in by heat, and it will outlive the people who made it. The dial uses a two-level architecture with a single sunk register, which gives Snoopy and the doghouse the kind of dimensional theatre you would normally only see on a much more expensive piece.
Hands are offered in either rhodium sword style or blued steel, both with Super-LumiNova application for night-time legibility. The choice between the two is one of those small editorial decisions that genuinely changes the personality of the watch, the blued steel reading more formal and the rhodium more punchy against the enamel white.
The Other Snoopy: Matte Light Blue
The matte light blue dial variant is not a downgrade. It is a different reading of the same composition, and it costs less than half of what the enamel version asks because it skips the firing process entirely. The matte finish gives the dial a softer, more contemporary feel, and the light blue colour pulls the cloud motif into the surface itself in a way the white enamel version does not. For a collector who loves the concept but cannot quite justify the enamel premium, this is a properly compelling alternative (and at $3,950 in stainless steel, it is also one of the more accessible RGM pieces in the current catalogue).
Both variants share the same case, the same movement, and the same Super-LumiNova equipped hand options. The decision really does come down to whether the grand feu dial work moves you enough to spend the difference.
A Case of Classic 151 Proportions
The Model 151 case is one of the more thoughtfully engineered pieces in the RGM catalogue. It is machined near RGM’s Pennsylvania workshop and hand-finished in-house, which is a level of domestic American watchmaking provenance that almost nothing else in the segment can match. The case sits at 38.5 millimetres in diameter with a 20 millimetre lug width. Thickness comes in at 9.9 millimetres on the matte light blue version and 10.6 millimetres on the grand feu enamel version (the slight delta is the dial architecture).
Two case materials are available. The stainless steel version is offered in polished, brushed, or combined finishing, which gives you a meaningful amount of customisation before you even pick the dial. The titanium version is offered in CP-2 grade with a brushed finish only, and is the lighter option for wrists that want the lower mass. Water resistance is rated to 5 ATM, which is the right call for a dressy pilot-style piece with this kind of dial work happening on the front.
The hallmark of the 151 line is the thin bezel and oversized dial. The dial reads larger than the case actually is, and the watch wears closer to a 40 millimetre piece on the wrist than the 38.5 millimetre number on paper suggests. The case is also notably thin for its diameter and curves to the wrist in a way that keeps the watch sitting flat rather than perching. It is the kind of case geometry you only really get right with experience.
RGM-Sellita SW300-1 Under the Hood
Powering all four configurations is the RGM-Sellita SW300-1, a Swiss made automatic running at 28,800 vph (4 Hz) with 25 jewels and a 52 to 56 hour power reserve. The calibre has been specified with a rhodium-plated finish and decorated with Côtes de Genève striping and perlage, which gives the movement a properly considered visual register that matches the dial work above it.
The SW300-1 is one of the more refined Sellita choices a brand can make in this price segment, and the RGM finishing pushes it further than the base specification. Servicing is straightforward through any qualified Swiss movement watchmaker, which keeps the long-term cost of ownership predictable on a watch you will reasonably want to wear for decades.
Strap and Daily Wear
The Snoopy Flying Ace ships on a Hirsch Performance strap, which combines a leather upper with a rubber backing for a strap that handles real-world wear without sacrificing the dressy register the dial deserves. The 20 millimetre lug width opens the aftermarket up properly, and a darker brown or a vintage tan would both pull the matte light blue dial in different directions if you want to rotate the look.
The case profile and 38.5 millimetre diameter make this a genuinely versatile daily wearer, and the 9.9 millimetre thickness on the light blue version means the watch slides under a cuff without complaint. The enamel version is only marginally thicker, which is barely perceptible on the wrist.
Why It’s Special
A few specific things set the Snoopy Flying Ace apart from the broader field of character-themed pilot watches.
- A genuine grand feu first: The white enamel variant is believed to be the first time Snoopy has been depicted on a watch dial executed in true grand feu enamel. Most “Snoopy watches” on the market today use printed or applied dials, which is a fundamentally different technical and emotional category
- Domestic American provenance: The case is machined near RGM’s Pennsylvania workshop and hand-finished in-house. There are very few brands in the world that can credibly claim that level of American manufacturing depth, and almost none doing it at this scale
- Two price tiers covering the same idea: The matte light blue version at $3,950 in stainless steel gives collectors a credible way into the concept, while the grand feu version at $8,950 in stainless steel rewards the buyer who values the technique itself. Most special editions force a single price point. This one does not
- A 151 case that genuinely earns its reputation: The thin bezel, oversized dial, and 9.9 millimetre profile make this one of the more wearable Snoopy-themed watches on the market, which matters when you are buying a watch you actually want to wear rather than display.
A Childhood Cartoon on a Properly Serious Watch
The Snoopy Flying Ace is the rare character-themed watch where the brand has clearly thought about both halves of the brief. The dial work, especially in the grand feu version, is at a level that justifies being taken seriously on its own technical merits. The 151 case and the SW300-1 movement underneath ensure that the watch holds up as a piece of horology rather than just as a piece of nostalgia.
At $3,950 to $9,950 in USD depending on dial and case material, the Snoopy Flying Ace covers an unusually wide price band for a single release, which is part of what makes it interesting. The matte light blue version is one of the more accessible RGM pieces currently available. The grand feu enamel version is a serious collector piece that happens to have a beagle on the front.
If the idea of opening a watch box to find Snoopy fired into a sheet of vitreous enamel makes the back of your neck warm up a little, this is one of the most genuinely original releases of the year. RGM only make around 400 watches a year, so the maths on availability tightens quickly.
Specifications:
Brand – RGM Watch Company
Model – Model 151 Snoopy Flying Ace
Case Material – 316L stainless steel (polished, brushed, or combined finish) or CP-2 titanium (brushed only)
Case Dimensions – 38.5mm diameter, 9.9mm thickness (matte light blue) or 10.6mm thickness (grand feu enamel), 20mm lug width
Water Resistance – 50m (5 ATM)
Strap – Hirsch Performance leather and rubber construction, 20mm
Crystal – Sapphire
Movement – RGM-Sellita SW300-1, Swiss automatic, 28,800 vph, 25 jewels, rhodium-plated finish, Côtes de Genève and perlage decoration
Power Reserve – 52 to 56 hours
Lume – Yes, Super LumiNova on hands and indices, hands available in rhodium sword or blued steel
Limited Edition – Not numbered, but production capped by RGM’s overall annual output of approximately 400 watches
Price – $3,950 (matte light blue stainless steel) / $4,950 (matte light blue titanium) / $8,950 (white grand feu enamel stainless steel) / $9,950 (white grand feu enamel titanium)
Official store link here.
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About RGM Model 151 Snoopy Flying Ace: Key Questions Answered
What is grand feu enamel and why does it cost more than the matte light blue version?
Grand feu enamel is a centuries old dial technique where layers of vitreous enamel are applied to a metal blank and kiln-fired at high temperatures, often through multiple firings. The result is a glass-like surface with exceptional depth and permanence that printed or lacquered dials cannot replicate. The premium reflects the manual skill, the firing time, and the high rejection rate at every stage of the process. RGM’s grand feu version is believed to be the first depiction of Snoopy executed in true enamel.
What is the difference between the stainless steel and titanium versions of the Model 151?
Both share the same 38.5 millimetre diameter, the same dial options, and the same movement. The stainless steel version is offered in polished, brushed, or combined finishing, which gives you a meaningful aesthetic choice before you even pick the dial. The titanium version uses CP-2 grade with a brushed finish only and is the lighter of the two on the wrist. Titanium adds $1,000 to the stainless steel price across both dial variants.
How does the RGM-Sellita SW300-1 compare to a standard Sellita SW300-1?
The base architecture is the same proven Swiss automatic calibre running at 28,800 vph with 25 jewels and a 52 to 56 hour power reserve. The RGM version adds a rhodium-plated finish and is decorated with Côtes de Genève striping and perlage to a higher visual standard than the stock specification. Servicing is straightforward through any qualified Swiss movement watchmaker.
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