The RSW LA122 Open Heart Dial is a refined Swiss-made automatic timepiece designed to combine classical elegance with contemporary mechanical visibility. Produced by RSW (Rama Swiss Watch), a brand rooted in the Swiss watchmaking tradition, this model highlights a key element of mechanical horology: the visible balance wheel displayed through an open-heart aperture on the dial.
Powered by a Swiss automatic movement and built with carefully finished materials, the watch represents an accessible entry into traditional mechanical watchmaking. The combination of a structured square case, an open-heart display, and balanced dial proportions gives the RSW LA122 a distinctive character within the modern dress watch category.
This model stands out for its architectural design, Swiss mechanical movement, and a visual focus on the mechanics that power the watch.
Design
The design of the RSW LA122 centers on a square-shaped case that gives the watch a distinctive presence compared to traditional round dress watches. The case adopts soft rounded edges, allowing the geometric form to remain elegant rather than rigid. Finished in gold-tone stainless steel, the polished surfaces reflect light smoothly and emphasize the refined character of the watch.
The bezel follows the cushion-square outline of the case and is decorated with small square diamond-set accents positioned around its perimeter. These decorative elements introduce subtle brilliance while maintaining a restrained aesthetic appropriate for a dress watch. The bezel remains fixed, functioning primarily as a visual frame that enhances the dial.
The dial is the focal point of the design. In this version, it features a deep green sunburst finish that shifts tone depending on lighting conditions. Gold-tone applied indices and Arabic numerals at 3, 6, and 9 o’clock create a clear and symmetrical layout. Slender baton markers define the remaining hours, maintaining a clean and balanced composition.
At 12 o’clock, the open-heart aperture reveals part of the mechanical movement beneath the dial. Through this circular opening, the oscillating balance wheel becomes visible, offering a dynamic view of the watch’s mechanical heartbeat. The cut-out is integrated cleanly into the dial layout and adds both depth and technical interest.
The hands follow a classic dauphine-inspired profile, finished in gold tone to match the indices and case. Their angular surfaces help reflect light, improving readability while maintaining a dress-oriented appearance.
Protecting the dial is a sapphire crystal, chosen for its durability and resistance to scratches. The watch is paired with a green leather strap that complements the dial color. The strap’s crocodile-pattern texture reinforces the formal character of the watch while providing visual continuity with the overall color palette.
Case & Construction
The RSW LA122 Open Heart Dial is built around a stainless steel case with a polished gold-tone PVD finish. The case measures approximately 34 mm by 34 mm, with a diagonal measurement of about 37 mm, creating compact proportions suitable for smaller wrists and refined dress styling. The case thickness is approximately 10 mm, allowing the watch to remain slim enough to fit comfortably under a shirt cuff.
The structural design of the case emphasizes durability and precision assembly. The crown is positioned at 3 o’clock and is proportioned for easy manual winding and time adjustment. The watch uses a sapphire crystal for dial protection, a material widely favored in modern watchmaking for its scratch resistance and optical clarity.
A solid caseback ensures structural integrity and protects the automatic movement inside. Water resistance is rated at 50 meters (5 ATM), making the watch suitable for everyday exposure to moisture such as handwashing or light rain, though it is not intended for swimming or aquatic activities.
Movement
At the heart of the RSW LA122 is a Swiss automatic mechanical movement, identified in many versions of the model as the RW24-S caliber. This movement operates through a self-winding system that converts the motion of the wearer’s wrist into stored energy via a rotating oscillating weight.
The caliber typically runs at a frequency of 28,800 vibrations per hour (4 Hz) and uses approximately 26 jewels to reduce friction between key moving components. When fully wound, the movement offers a power reserve of around 40-42 hours, allowing the watch to continue operating even after being removed from the wrist for more than a day.
Automatic movements such as the RW24-S represent a long-standing tradition in Swiss watchmaking. Their mechanical architecture eliminates the need for a battery and relies entirely on springs, gears, and regulated oscillation to maintain timekeeping. These calibers are valued for their reliability, mechanical transparency, and the tactile experience they offer to enthusiasts.
The open-heart display on the dial allows the wearer to observe the balance wheel in motion, offering a partial view of the mechanical process that regulates the watch’s timekeeping.
Functions & Complications
The RSW LA122 focuses on essential timekeeping functions while highlighting mechanical craftsmanship through its open-heart display.
The watch provides the traditional indications of hours, minutes, and central seconds. These core functions are arranged in a clear and uncluttered dial layout that prioritizes readability and visual balance.
The primary horological feature is the open-heart complication positioned at 12 o’clock. Rather than a full skeletonized dial, this design reveals only a portion of the movement, specifically the oscillating balance wheel. This approach allows the wearer to observe the mechanical rhythm of the watch while preserving the clean aesthetic typical of dress watches.
Performance
In everyday use, the RSW LA122 Open Heart Dial offers a comfortable wearing experience thanks to its moderate case dimensions and balanced weight distribution. The square case provides a distinctive wrist presence while remaining compact enough for smaller wrists, which aligns well with its positioning as a women’s dress watch.
The dial maintains good readability due to the contrast between the deep green background and the gold-tone hands and indices. The applied markers catch ambient light, helping the time remain legible in various lighting conditions.
With a water-resistance rating of 50 meters, the watch is suitable for daily wear but is primarily designed for urban and formal environments rather than sport activities. The automatic movement ensures continuous operation when worn regularly, while the leather strap enhances comfort and adaptability for extended use.
Overall, the watch performs as a refined mechanical timepiece designed for everyday elegance rather than technical sports performance.
Technical Data
Brand: RSW Watches;
Model: RSW LA122 Open Heart (Ref. RSWLA122-SL-12);
Year: 2020+;
Case Material: Gold-tone PVD Stainless Steel;
Case Diameter: 34 mm × 34 mm (37 mm diagonal);
Case Thickness: 10 mm;
Lug Width: 15 mm;
Crystal: Sapphire Crystal;
Water Resistance: 50 m / 165 ft (5 ATM);
Movement: Automatic Mechanical Watches – ETA Caliber 2824-2 (Swiss Movement);
Functions: Hours, Minutes, Seconds, Automatic Winding;
Complications: Open Heart Display;
Bracelet / Strap: Green Leather Strap;
Type: Classic Watches, Dress Watches, Fashion Watches, Open Heart Watches;
Sex: Women’s Watches;
Nationality: Swiss Watches.
Retail Price (Launch): €450 / $480.
The RSW LA122 reflects a design philosophy that blends traditional Swiss mechanical watchmaking with contemporary aesthetics. Its open-heart dial offers a visual connection to the mechanical craftsmanship behind the watch, while the square case design introduces a modern architectural element.
Within the RSW collection, this model represents a refined interpretation of the classic dress watch, emphasizing elegance and mechanical authenticity rather than technical complexity. It appeals particularly to wearers who appreciate the visible mechanics of automatic movements combined with a distinctive and decorative case design.
By combining Swiss mechanical engineering, balanced proportions, and an accessible price position, the RSW LA122 Open Heart Dial serves as a stylish entry point into the world of mechanical dress watches.
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