Oris Aquis Date Calibre 400

Product Overview

The Oris Aquis Date Calibre 400 is a high-performance Swiss-made dive watch designed for men who demand precision, durability, and refined style. Built for underwater exploration and everyday wear, this timepiece combines professional diving functionality with modern aesthetics. At its core is the in-house Calibre 400 automatic movement, developed entirely by Oris, offering exceptional reliability and a remarkable 5-day power reserve. The watch features a bold 43.5 mm stainless steel case with a striking gradient blue dial and a matching blue ceramic uni-directional rotating bezel, making it both visually impressive and highly functional. Whether you’re a recreational diver, a watch enthusiast, or someone who values Swiss craftsmanship, the Aquis Date Calibre 400 delivers on all fronts.

Key Features

• In-House Calibre 400 Movement: This self-winding Swiss movement is developed entirely by Oris, offering superior accuracy, reduced long-term servicing needs, and a 120-hour (5-day) power reserve for uninterrupted performance. The movement reflects Oris’s commitment to independent watchmaking and long-term reliability.
• 43.5 mm Stainless Steel Case: The robust yet refined case is engineered for durability and comfort, providing ample presence on the wrist while maintaining wearability for daily use. Its polished and brushed finishes add visual depth and a premium feel.
• Gradient Blue Dial with Luminescent Markers: The eye-catching dial transitions from deep to light blue and features silver-tone indices and obelisk-style hands, all enhanced with luminescent material for visibility in low-light conditions. A date window is positioned at 6 o’clock, maintaining the dial’s clean symmetry.
• Uni-Directional Rotating Bezel with Blue Ceramic Insert: The bezel includes minute markings and a scratch-resistant ceramic top ring, essential for tracking elapsed time underwater with safety and precision. The unidirectional mechanism ensures that any accidental movement only shortens the perceived dive time, enhancing diver safety.
• Black Rubber Strap with Stainless Steel Folding Clasp: The durable rubber strap ensures comfort during extended wear and includes a folding clasp with extension and push-button release for secure fit over dive suits or casual attire. The clasp design allows for easy adjustment without removing the watch.
• 300-Meter Water Resistance: Rated for depths up to 300 meters (1000 feet), this watch meets the ISO 6425 standard for true dive watch capability, making it suitable for recreational diving and water sports. The screw-down crown further enhances water resistance.

Technical Specifications

• Model Number: 4135-07-4-24-74EB
• Case Material: Stainless steel
• Case Diameter: 43.5 mm
• Dial Color: Gradient blue
• Bezel: Uni-directional rotating, blue ceramic with minute markings
• Strap Material: Black rubber
• Clasp Type: Stainless steel folding clasp with extension and push-button release
• Movement: In-house Calibre 400 Swiss automatic
• Power Reserve: 120 hours (5 days)
• Water Resistance: 300 meters / 1000 feet
• Date Display: Window at 6 o’clock position
• Luminous Elements: Hands and hour markers
• Manufacturer: Oris
• Department: Men’s
• Product Dimensions: 7.87 x 5.91 x 3.94 inches
• Item Weight: 8.82 ounces
• ASIN: B08W37KJFM
• Date First Available: March 2, 2021

Benefits & Use Cases

The Oris Aquis Date Calibre 400 excels in both underwater and everyday environments. Its 300-meter water resistance and ISO-compliant dive features make it a reliable companion for scuba diving, snorkeling, and swimming. The luminescent hands and markers ensure legibility at depth or in dark conditions, while the secure rubber strap and extension clasp allow for a snug fit over a wetsuit. On land, the watch transitions seamlessly into a sophisticated accessory suitable for business, travel, or casual wear. The in-house movement not only enhances performance but also reflects Oris’s commitment to independent Swiss watchmaking. With its balanced design and technical prowess, this watch appeals to divers, collectors, and professionals seeking a timepiece that performs under pressure and looks exceptional in any setting.

Important Notes

This Oris Aquis Date Calibre 400 is brand new and comes in its original packaging. For warranty details, please refer to the manufacturer’s official policy. The watch is designed for men and may not be suitable for smaller wrists due to its 43.5 mm case size. While highly water-resistant, it should be rinsed with fresh water after exposure to saltwater or chlorine. Regular maintenance by an authorized service center is recommended to preserve performance and longevity. Please note that product availability and rankings may vary over time.