Cuervo y Sobrinos Churchill Sir Winston

Swiss-based watchmaker Cuervo y Sobrinos recently expanded its catalog with the introduction of the Churchill Sir Winston collection, featuring three new reference numbers configured with distinct dial colors. Operating from its current headquarters in the canton of Jura, the brand heavily references its late nineteenth-century origins in Havana, Cuba, specifically focusing on the era when the original boutique served international political figures. Sir Winston Churchill serves as the namesake for this specific line, drawing on historical records of his visits to the island and his patronage of local establishments. The new models are structured around a multi-material 43mm case, utilizing a Sellita-based automatic movement to power a centralized day-date display. References 2810.1SWS, 2810.1SWBL, and 2810.1SWBY correspond to the silver, black, and burgundy dial variants, respectively. Production for this series is strictly limited to 282 units, with each piece individually serialized via a dedicated case flank plate. By offering both a metal bracelet and a leather strap in the standard packaging, the manufacturer addresses the modern consumer expectation for interchangeable mounting options straight from the factory.

Analyzing the broader market context, the 43mm footprint places these references on the larger end of the contemporary dress-casual spectrum. Many modern brands have pivoted toward sub-40mm diameters, making this specific sizing a deliberate choice for consumers who prefer substantial wrist presence without moving into dedicated dive watch dimensions. The inclusion of a day-date complication further categorizes the Sir Winston as a practical daily-wear instrument rather than a strictly formal occasion piece. Historical context regarding Churchill's personal effects often highlights substantial, highly legible pocket watches and early wristwatches, a physical reality that aligns with the proportions chosen for this modern tribute. Distributing the mass of a 43mm steel watch requires careful lug geometry, a challenge the brand addresses through a multi-part case construction that integrates lighter alloys. The specific combination of textures, metals, and colors indicates a highly specified manufacturing process, requiring coordination between dial suppliers, case makers, and the final assembly facility in Switzerland.

The Case and Dial

Measuring exactly 43mm in diameter and 12.45mm in overall height, the case architecture relies on a hybrid construction of stainless steel and titanium elements. The primary structural components, including the bezel, upper lugs, and caseback, are machined from standard 316L stainless steel, providing the necessary hardness to maintain high-polish finishes. To offset the physical weight of a solid 43mm steel block, the designers integrated titanium into the case sides. Titanium offers a superior strength-to-weight ratio compared to steel, while also providing a darker, more industrial visual contrast against the highly reflective steel surfaces. This side profile is further complicated by the inclusion of a lateral nameplate, which is physically screwed into the titanium flank and engraved with the individual unit's production number out of the 282-piece run. Achieving a consistent 10 ATM water resistance rating with a multi-piece case requires precise gasket integration, ensuring the disparate metals expand and contract without compromising the internal seals.

Securing the movement and setting the complications relies on a prominent hinged crown lever situated at the 3 o'clock position. Rather than utilizing standard fixed crown guards molded directly from the case band, this lever system operates on a dedicated pivot, physically swinging outward to allow manipulation of the winding and setting stem. When locked against the case, the lever provides a flush, protective barrier against direct lateral impacts that could otherwise bend the stem or damage the movement's keyless works. The lug design features a stepped, articulated profile that slopes aggressively downward from the primary case housing. This downward curvature is engineered to reduce the effective lug-to-lug distance, allowing the 43mm watch head to conform to the natural curvature of the human wrist rather than overhanging the edges. Finishing across these structural elements alternates between mirror-polished top surfaces and horizontally brushed flanks, creating sharp boundary lines that require multiple passes on specialized polishing wheels to achieve.

Moving inward from the polished steel bezel, the dial surface is defined by a dense, stamped hobnail guilloché pattern. High-volume applications often rely on a hydraulic stamping process to press the three-dimensional geometric texture into a brass dial blank, replicating traditional engine-turning methods. This specific pattern features intersecting lines that create tiny, pyramid-like raised squares, manipulating ambient light to reduce surface glare and provide a matte-leaning backdrop for the polished hardware. Time indication is achieved through applied gold-colored indices, utilizing Arabic numerals at the 10, 2, 4, and 8 o'clock positions, interspersed with faceted dart markers. Applying these indices requires drilling microscopic holes into the textured brass dial, manually setting the feet of the markers, and securing them from the reverse side to ensure they remain anchored under physical shock. The brand emblem is centrally applied just below the 12 o'clock marker, featuring a red enamel-filled center that corresponds with the red tip of the central sweeping seconds hand.

Legibility of the calendar functions is prioritized through a vertical stacking of the day and date apertures at the 6 o'clock position. The day of the week is displayed via a curved, fan-shaped window, while the numerical date sits immediately below it in a trapezoidal frame. Implementing this layout requires a specific modification to the underlying date and day wheels of the movement, as standard configurations typically place the day window along the outer perimeter near the 3 o'clock or 12 o'clock markers. Both windows are framed by raised, gold-colored metallic borders that match the hour indices, adding a vertical dimension to the dial layout. Reading the time is facilitated by alpha-style hour and minute hands, which are polished to a high reflection and omit any luminous material, reinforcing the dress-oriented nature of the design. The flat sapphire crystal protecting the dial is treated with an anti-reflective coating on the underside, preventing high-contrast lighting environments from obscuring the textured guilloché surface.

The Movement

Powering the timekeeping and calendar mechanisms is the Sellita SW 240-1 automatic caliber, a widely adopted Swiss workhorse measuring 11lignes, or 29mm in diameter, with a thickness of 5.05mm. Operating at a frequency of 28,800 vibrations per hour, the movement provides a smooth sweep for the seconds hand, translating to eight discrete steps per second. Cuervo y Sobrinos specifically selected the Premium execution of this caliber, which represents a significant mechanical upgrade over standard off-the-shelf versions. Top-grade movements are factory-adjusted in five separate positions to minimize positional variance and ensure tighter daily accuracy tolerances. Furthermore, this tier typically utilizes upgraded materials for the regulating organ, including a Glucydur balance wheel that resists temperature fluctuations and a superior hairspring alloy designed for better isochronism. The inclusion of hacking seconds allows the wearer to completely halt the balance wheel when the crown is pulled, enabling precise synchronization with an external reference time.

Energy storage within the SW 240-1 maxes out at a 38-hour power reserve when fully wound. While contemporary calibers often push past the 70-hour mark, the 38-hour capacity is an inherent limitation of the traditional base architecture, necessitating regular daily wear or manual winding via the crown to maintain mainspring tension. Winding efficiency is maintained by a bidirectional central rotor, which rests on ball bearings to reduce friction during daily wrist movements. The exhibition caseback utilizes a secondary pane of sapphire crystal, held in place by a stainless steel perimeter ring secured with four individual flathead screws. Stamping text onto the interior surface of the sapphire, the manufacturer applied a quote from Sir Winston Churchill regarding attitude, executed in blue ink to contrast against the metallic movement components. This visual access point allows the owner to inspect the mechanical assembly without compromising the internal environment or the 10 ATM static pressure rating.

Inspecting the visible movement components reveals a deliberate approach to industrial decoration. The most prominent element is the custom-finished oscillating weight, which features wide, parallel Geneva stripes applied across its surface. This abrasive finishing technique catches the light dynamically as the rotor spins, adding visual interest to the utilitarian brass and steel components. An applied golden emblem is physically mounted directly onto the rotor, adding three-dimensional depth to the spinning mass. Beneath the rotor, the mainplate and visible bridges feature tight circular graining, consisting of overlapping brushed circles that help trap microscopic dust particles originating from component wear. Polished screw heads and strategically beveled edges on the thicker metal plates demonstrate the premium execution tier of the Sellita blank, separating it from the undecorated base models found in entry-level Swiss timepieces.

The Strap and Bracelet

Packaged with each reference is a high-gloss alligator leather strap, dyed to closely coordinate with the respective silver, black, or burgundy dial color. The leather features a padded center ridge that tapers down toward the stitched edges, providing substantial thickness near the case lugs before thinning out toward the clasp. Securing the strap is a customized stainless steel folding buckle, engineered with a twin-trigger release mechanism to prevent accidental deployment during physical activity. The visible top surface of the clasp is deeply engraved with the brand's crest, serving as a final point of brand identification on the underside of the wrist.

Transitioning the watch to a more utilitarian format is achieved by swapping the leather for the included stainless steel bracelet. The link architecture utilizes a multi-piece design, featuring wide, brushed outer segments flanking polished, narrower center connecting links. This alternating finish matches the dual-tone polishing of the primary case body, creating a continuous visual line from the lugs completely around the wrist. Pin-and-collar or screw-based link adjustments allow the owner to size the bracelet down for proper tension, ensuring the heavy 43mm case remains securely anchored without shifting.

Pricing and Availability

Distributing a limited run of 282 units requires strict allocation across the brand's global network of authorized retail partners. The package includes both the leather strap and the steel bracelet within the presentation box, avoiding the common industry practice of charging a premium for secondary mounting hardware. Cuervo y Sobrinos has prioritized availability for existing clients and established horological points of sale, specifically targeting markets with high concentrations of mid-tier luxury consumers. Final retail pricing is subject to regional distribution costs, import tariffs, and local taxation rates.

Technical Specifications

Case: Stainless steel with titanium sides, 43mm diameter, 12.45mm height, sapphire crystal with anti-reflective coating, screw-down see-through caseback, hinged crown lever at 3 o'clock, water-resistant to 10 ATM.

Movement: Sellita SW 240-1, automatic, 11lignes (29mm diameter, 5.05mm height), 38-hour power reserve, Premium (Top) execution, decorated rotor with applied CyS emblem.

Dial: Guilloché pattern (available in silver, black, or burgundy), gold-color applied indices, applied CyS emblem with red accents, day and date functions at 6 o'clock.

Strap: High-gloss alligator leather strap (color-coordinated) and stainless steel multi-link bracelet included; folding buckle with engraved CyS emblem.

Price: TBD (Subject to regional retail networks)

Reference Number: 2810.1SWS (Silver), 2810.1SWBL (Black), 2810.1SWBY (Burgundy)

Notes: Limited Edition of 282 pieces, individually numbered with a lateral nameplate engraved with the edition number; caseback crystal stamped with Winston Churchill quote.