The Oris Big Crown 403 marks a turning point in the brand's pursuit of horological independence, introducing the Oris Caliber 403—a powerful in-house movement offering both technical excellence and practical benefits. This model stays true to the Big Crown series' roots with its aviation-inspired design but elevates the line through a modern movement that showcases Oris' growth as a manufacturer. With a small seconds complication and an extended power reserve, the watch caters to connoisseurs seeking performance, longevity, and heritage.
The watch maintains the familiar and beloved features of the Big Crown line, including the oversized screw-in crown and fluted bezel. The stainless steel case measures 38mm, making it incredibly wearable for a wide range of wrists. This more modest sizing compared to earlier Big Crown models makes the 403 a versatile unisex choice, ideal for those looking at Oris Watches for men and equally suited for those exploring Oris Watches for women. It brings a sense of classic proportion to contemporary styling.
One of the standout aspects of the 403 is the in-house movement at its core. The Oris Caliber 403 is part of the brand's innovative 400 Series, which was developed to offer greater durability, accuracy, and service intervals. It boasts a five-day power reserve, high anti-magnetic resistance, and a recommended 10-year service cycle. This leap in movement quality places the Big Crown 403 in a different league, as it competes confidently with offerings from much larger Swiss brands while preserving an approachable price point.
Aesthetically, the 403 exudes vintage charm. The clean dial layout includes a small seconds subdial at 6 o'clock, eliminating any unnecessary clutter and maintaining perfect symmetry. Lume-filled hour markers and hands ensure visibility in dim lighting, and the domed sapphire crystal adds a touch of old-world sophistication. The attention to detail in finishing, from the brushing on the case to the polished accents, reflects Oris' growing stature in fine watchmaking.
In a market crowded with generic designs and mass-produced movements, the Oris Big Crown 403 offers a refreshing sense of originality. It feels purpose-built—designed not just to look good, but to deliver measurable benefits to the wearer. Whether navigating daily life or enjoying a weekend retreat, the 403 handles all occasions with understated grace. It's a timepiece that rewards closer inspection, as each element serves a meaningful purpose.
While the Oris Big Crown 403 appeals to those familiar with mechanical watches, it is also highly accessible to newcomers. Its user-friendly design, comfortable sizing, and transparent value proposition make it an inviting entry into high-quality horology. For those seeking an alternative to the mainstream luxury brands, Oris offers something unique: integrity, innovation, and a distinct design language that has remained authentic for over a century.
The 403's versatile appearance makes it a wardrobe staple. It pairs easily with both formal and casual attire and offers customization through a range of strap options, including leather, textile, and steel bracelets. It's a watch that doesn't need loud branding to make an impression—it relies on craftsmanship, functionality, and a legacy of aviation-inspired design to speak for itself.
With the release of the Big Crown 403, Oris has demonstrated that independent brands can lead with both innovation and elegance. The watch celebrates heritage while embracing future-ready mechanics. Whether you are drawn to Oris Watches for men or Oris Watches for women, the 403 presents an ideal balance between tradition and modernity, between mechanical depth and everyday wearability. It stands as a milestone for the brand, a symbol of its commitment to producing purposeful, enduring timepieces for a global audience.