Tissot continues to expand its highly successful PRX collection, a line that has rapidly become a cornerstone of the Swiss watchmaker’s offering. The latest addition introduces a touch of refined luminescence to the larger 40mm case size, with the integration of a white mother-of-pearl dial. This move marks a significant evolution for the PRX, demonstrating Tissot’s commitment to offering diverse aesthetics within its popular integrated bracelet sports watch platform. The PRX range, known for its 1970s-inspired design, has historically spanned a broad spectrum of options, including automatic and quartz movements, various case sizes (40mm, 38mm, 35mm, and even a recent 25mm), and an impressive array of materials such as stainless steel, titanium, Damascus steel, and forged carbon, all available in a spectrum of colors. This latest release, however, brings a material previously exclusive to the smaller 35mm iteration into the more substantial 40mm model.
The Expanding PRX Universe and the Paradox of Choice
The proliferation of the Tissot PRX collection is a testament to its enduring appeal and Tissot’s strategic market approach. Since its reintroduction, the PRX has captured the attention of both seasoned watch enthusiasts and newcomers to the horological world. Its accessible price point, combined with a design that evokes a sense of vintage luxury and contemporary sportiness, has made it a runaway success. The collection’s breadth is remarkable, encompassing classic automatic Powermatic 80 models, reliable quartz variants, and a variety of sizes catering to different wrist preferences. Beyond the standard stainless steel executions, Tissot has daringly experimented with materials like titanium, Damascus steel, and forged carbon, pushing the boundaries of what a popular, entry-level luxury sports watch can offer. Furthermore, the brand has liberally employed a vibrant palette of colors, ensuring that there is a PRX to match virtually any personal style. This vast offering, however, prompts reflection on a concept famously articulated by psychologist Barry Schwartz: "The Paradox of Choice." Schwartz’s research suggests that while variety can be desirable, an excessive number of options can lead to decision paralysis, anxiety, and ultimately, reduced satisfaction. Yet, for Tissot, the strategy appears to be one of embracing this abundance, continuously enriching the PRX catalog rather than adhering to strict product segmentation.
A Luminous Debut for the 40mm Case
The introduction of the mother-of-pearl dial to the 40mm PRX Powermatic 80 is a notable development, as this dial finish was previously reserved for the more compact 35mm version. The original unveiling of the PRX with a mother-of-pearl dial in the 35mm size was met with significant interest, particularly for its sophisticated aesthetic. While mother-of-pearl dials are often associated with more traditionally feminine watchmaking, Tissot has here demonstrated a deliberate intention to broaden its appeal. The white mother-of-pearl, in this instance, is not merely a flat, iridescent surface. It is artfully combined with the collection’s signature "tapisserie" or waffle-like pattern, a textured finish that lends a remarkable depth and visual interest. This combination results in a dial that is both subtly lustrous and dynamically textured, creating an iridescent effect that catches the light in captivating ways. This nuanced approach to a material often perceived as purely decorative elevates it to a more universally appealing design element, proving that the inherent beauty of mother-of-pearl can indeed be integrated into a sportier, more robust watch design without compromising its character.

Expanding Material Horizons for the PRX
The strategic placement of the mother-of-pearl dial in the larger 40mm PRX Powermatic 80 model is a clear signal from Tissot. It aims to challenge the conventional gendered associations with certain dial materials and to underscore the versatility of the PRX platform. This move reinforces the brand’s message that high-quality, aesthetically distinct finishes are not exclusive to specific sizes or market segments within the PRX family. The dial itself, despite the material change, faithfully adheres to the established design language of the PRX collection. It retains the characteristic "tapisserie" texture, which provides a subtle yet engaging backdrop for the applied metallic hour markers and faceted hands. These elements are further enhanced with Super-LumiNova, ensuring legibility in low-light conditions. The time display is a classic configuration, featuring a prominent date window positioned at the 3 o’clock mark, neatly framed by a polished metallic accent that complements the overall refined aesthetic. This thoughtful integration of the mother-of-pearl within the existing design framework ensures that the new iteration feels like a natural evolution rather than a radical departure.
The Enduring Formula: Case, Movement, and Bracelet
Beyond the captivating new dial, the Tissot PRX 40mm Powermatic 80 with the mother-of-pearl finish adheres to the well-established and highly successful formula that has defined the collection. The stainless steel case maintains its distinctive barrel shape, measuring a contemporary 40mm in diameter and a slender 11mm in thickness. This profile, coupled with a lug-to-lug measurement of 44mm (excluding the first link of the bracelet), ensures a comfortable and balanced wear on a variety of wrist sizes. The integrated steel bracelet, a hallmark of the PRX design, seamlessly flows from the case, featuring a combination of brushed and polished surfaces that add to its premium feel.
At the heart of this timepiece beats the Powermatic 80 automatic movement. This caliber, a refined evolution of the widely respected ETA 2824-2, has been a key factor in the PRX’s success. It boasts significant upgrades, most notably an extended power reserve of 80 hours, allowing the watch to remain operational for over three days when not worn. This extended autonomy addresses a common user desire for greater convenience. Furthermore, the movement is equipped with a Nivachron antimagnetic hairspring, enhancing its resistance to magnetic fields and contributing to greater precision and reliability over time. The movement is visible through a sapphire crystal caseback, offering a glimpse of its intricate workings.
The watch is secured to the wrist by a robust stainless steel bracelet, featuring a triple-folding clasp with safety push-buttons for enhanced security. A practical quick-release system for the spring bars is also incorporated, allowing for effortless customization. Tissot offers a range of optional leather and rubber straps, sold separately, providing wearers with the flexibility to adapt the watch’s look and feel for different occasions and preferences, further enhancing its versatility.

Availability and Pricing
The Tissot PRX 40mm Powermatic 80 with the white mother-of-pearl dial is now available as part of the brand’s permanent collection. This strategic decision to integrate it into the core offering ensures broader accessibility for consumers interested in this refined aesthetic. The reference number for this particular model is T137.407.11.111.00.
Priced at EUR 825, this new iteration represents a modest increase of EUR 50 compared to the standard stainless steel models with conventional metallic dials. This slight premium is justifiable given the added complexity and aesthetic appeal of the mother-of-pearl dial. The watch is also competitively priced in other major currencies, retailing for CHF 725 and USD 850, reflecting Tissot’s global pricing strategy. This positioning maintains the PRX’s reputation as an accessible luxury sports watch, offering significant value for its price point and feature set.
Technical Specifications
Case:
- Diameter: 40mm
- Thickness: 10.9mm
- Lug-to-lug: 44mm (excluding first link)
- Material: Stainless steel, brushed with polished accents
- Crystal: Sapphire crystal
- Caseback: See-through
- Water Resistance: 100 meters
Dial:

- Base: White mother-of-pearl
- Pattern: Waffle-like "tapisserie" texture
- Markers: Applied metallic
- Hands: Faceted with Super-LumiNova
- Date Window: Framed at 3 o’clock
Movement:
- Caliber: Tissot Powermatic 80 (upgraded ETA 2824-2)
- Type: Automatic
- Jewels: 23
- Diameter: 25.60mm
- Power Reserve: 80 hours
- Frequency: 21,600 vibrations per hour (3 Hz)
- Features: Nivachron antimagnetic hairspring, hours, minutes, seconds, date
Bracelet:
- Material: Integrated stainless steel
- Finishing: Brushed with polished accents
- Clasp: Triple folding clasp with safety push-buttons
- System: Easy-change system for straps
Reference:
- T137.407.11.111.00
Availability:

- Immediate, permanent collection
Price:
- EUR 825
- CHF 725
- USD 850
For further details and to explore the full Tissot collection, interested parties can visit the official Tissot website at www.tissotwatches.com. The enduring appeal of the Tissot PRX continues to be bolstered by such thoughtful expansions, offering discerning consumers a blend of classic design, modern functionality, and evolving aesthetic choices.