Tudor Royal Automatic Diamond Black Dial 34 mm Watch

Product Overview

The Tudor Royal Automatic Diamond Black Dial 34 mm Watch M28400-0004 is a distinguished men’s timepiece that combines refined aesthetics with dependable mechanical performance. Designed for the modern gentleman who values both tradition and functionality, this watch features a striking black dial enhanced with diamond hour markers, offering a subtle yet luxurious presence. Housed within a 34 mm silver-tone 316L stainless steel case, the watch strikes a perfect balance between elegance and wearability, making it suitable for a wide range of occasions—from professional environments to weekend outings.

At its core lies an automatic movement, a hallmark of mechanical watchmaking that eliminates the need for battery changes. Instead, the movement is powered by the natural motion of the wearer’s wrist, ensuring consistent and reliable timekeeping with every use. This self-winding mechanism not only enhances convenience but also reflects Tudor’s dedication to precision engineering. The watch’s construction emphasizes durability and long-term value, with every component built to withstand daily wear while maintaining its polished appearance.

Whether you’re dressing for a business meeting, attending a formal event, or simply seeking a reliable everyday watch, the Tudor Royal M28400-0004 delivers a versatile and sophisticated option. Its understated design ensures it complements both formal attire and casual wear, while its robust build quality offers peace of mind for active lifestyles.

Key Features

• Black Diamond Dial: The deep black dial is elegantly accented with diamond hour markers, providing a refined contrast that enhances legibility while adding a touch of luxury. The diamonds are carefully set to catch the light subtly, ensuring sophistication without excess.
• 316L Stainless Steel Construction: Both the case and bracelet are crafted from high-grade 316L stainless steel, known for its excellent resistance to corrosion, durability, and ability to retain a polished finish over time. This material is commonly used in premium watches for its strength and hypoallergenic properties.
• Automatic Movement: The self-winding mechanical movement harnesses kinetic energy from the wearer’s natural arm movements, keeping the watch running smoothly without batteries. This traditional mechanism appeals to those who appreciate the craftsmanship behind mechanical timepieces.
• 100 Meters Water Resistance: With a water resistance rating of 100 meters (330 feet), this watch is suitable for swimming, snorkeling, and showering. It offers reliable protection against water exposure during everyday activities and light aquatic pursuits.
• Fixed Bezel: The fixed bezel maintains a clean, uninterrupted profile around the dial, contributing to the watch’s sleek silhouette while protecting the crystal from impacts.
• Fold Over Clasp: The secure fold-over clasp ensures a snug and comfortable fit on the wrist, minimizing the risk of accidental opening. It provides easy adjustment and reliable closure throughout the day.
• 34 mm Case Size: The 34 mm diameter offers a medium-sized presence on the wrist—large enough to be noticed, yet compact enough for comfortable all-day wear. It fits well under shirt cuffs and suits a variety of wrist sizes.

Technical Specifications

• Model Number: M28400-0004
• Department: Men
• Case Material: Silver-tone 316L stainless steel
• Band Material: Silver-tone 316L stainless steel
• Dial Color: Black with diamond markers
• Movement Type: Automatic
• Water Resistance: 100 meters / 330 feet
• Bezel Type: Fixed
• Clasp Type: Fold Over
• Case Diameter: 34 mm
• Item Weight: 1.45 pounds
• Manufacturer: Tudor
• ASIN: B08S2RSMVB
• Date First Available: January 4, 2021

Benefits & Use Cases

The Tudor Royal M28400-0004 is ideal for men who seek a watch that performs as well as it looks. Its 34 mm case size ensures it fits comfortably on most wrists, making it appropriate for extended wear without feeling bulky. The automatic movement appeals to those who value mechanical ingenuity and the satisfaction of a self-sustaining timepiece. Unlike quartz watches, it doesn’t require battery replacements, reducing long-term maintenance and offering a more traditional watch experience.

With 100 meters of water resistance, this watch is built to handle real-world conditions—whether you’re caught in the rain, washing your hands frequently, or enjoying a swim. It’s not designed for deep diving, but it provides ample protection for everyday water exposure. The diamond-accented dial elevates its appearance, making it suitable for formal occasions, dinner dates, or professional settings where a refined accessory is appreciated.

The 316L stainless steel construction ensures the watch resists tarnishing and wear, maintaining its polished look with regular care. The fold-over clasp adds security, especially during physical activity, while the fixed bezel contributes to a clean, cohesive design. Overall, this watch is a practical yet stylish choice for daily wear, offering reliability, elegance, and enduring value.

Important Notes

Warranty information for this product is available directly from the manufacturer and can be accessed via the provided link. To preserve the watch’s performance and appearance, avoid exposure to strong magnetic fields, extreme temperatures, and harsh chemicals such as chlorine or perfumes. Regular servicing by a qualified technician is recommended to maintain accuracy and functionality over time. The watch is delivered in its original Tudor packaging, though specific contents are not detailed in the source material. To ensure authenticity and full warranty eligibility, purchase from authorized Tudor retailers.