The Tudor Caliber T11 is a mechanical movement introduced by Tudor as part of its commitment to delivering robust, high-performance timepieces with in-house calibers. Designed and manufactured under the same rigorous standards upheld by Rolex, the T11 is emblematic of Tudor's modern horological craftsmanship, offering reliability, precision, and contemporary watchmaking features.

Overview and Technical Specifications

The T11 is part of Tudor’s family of in-house calibers, a development that began with the MT56XX series. Although less publicized than some other Tudor movements, the T11 is used in specific modern models and is designed to reflect a blend of durability and high-end mechanical performance.

Key features of the Tudor T11 include:

• Type: Automatic mechanical movement

• Functions: Hours, minutes, seconds (often with central seconds), and power reserve indicator in some variants

• Power Reserve: Around 50 to 70 hours, depending on version

• Frequency: 28,800 vibrations per hour (4 Hz)

• Winding: Bidirectional self-winding via rotor

• Accuracy: COSC chronometer-grade performance in most models

• Shock Resistance: High, due to robust bridge construction and balance support

Movement Design

The T11 is typically modular in construction, meaning it may be built with functional modules such as a power reserve display, date complication, or GMT function, depending on the model. This modularity offers both flexibility for design and ease of service.

Its architecture emphasizes stability and serviceability, with a full balance bridge and a large variable-inertia balance wheel—both features that improve the resilience of the movement to shocks and environmental changes.

The movement is also known for:

• Satin-brushed finishing on the bridges

• A Tudor-engraved rotor, often openworked for visual impact

• Silicon balance spring in some configurations for improved magnetic resistance

Use in Tudor Watches

While Tudor does not explicitly list all movements per model, the T11 has appeared in limited or niche references, particularly those focused on technical performance or special editions. It complements Tudor’s broader strategy to gradually reduce reliance on outsourced movements (such as ETA) by integrating in-house calibers that meet modern expectations of autonomy and durability.

Maintenance and Servicing

The T11 follows similar maintenance requirements as other high-grade mechanical movements:

• Service interval: Typically every 5–7 years

• Servicing must be done by Tudor-certified watchmakers to preserve factory specs

• Lubrication points and escapement tolerances are factory-calibrated and require specialized tools for accurate regulation

Due to its in-house nature, T11 parts may not be easily sourced outside of authorized service centers, underscoring the importance of official maintenance routes.

Conclusion

The Tudor Caliber T11 reflects the brand’s evolution from a Rolex-affiliated tool watchmaker into a technically independent manufacture. With solid power reserve, precise chronometric performance, and robust construction, the T11 is a strong example of Tudor’s pursuit of horological excellence. It offers collectors and wearers a high degree of reliability, packaged in the brand’s signature rugged and refined aesthetic.