A Clean and Versatile Everyday Chronomat

The Chronomat B31 Automatic 40 in white offers a more understated interpretation of the collection, placing emphasis on clarity, wearability, and modern mechanical performance. With its high-contrast dial, extended power reserve, and balanced proportions, it delivers a practical and refined approach to everyday luxury watchmaking.

White Dial with Clean, High-Contrast Legibility

The dial is presented in a bright white finish that enhances clarity and contrast across the display. This lighter tone amplifies legibility and gives the watch a more refined and contemporary presence compared to darker variants.

Without chronograph subdials, the dial remains open and uncluttered, allowing time to be read instantly. The date display is integrated in a way that preserves the overall balance of the design, supporting both symmetry and everyday functionality.

Next-Generation Manufacture Movement Performance

The Chronomat B31 Automatic 40 is powered by the Breitling Manufacture Calibre B31, a self-winding mechanical movement developed to deliver stability and long-duration performance. It offers an extended power reserve of approximately 78 hours, allowing the watch to remain running across multiple days without winding.

Designed for consistency, the movement supports precise timekeeping under continuous use while maintaining a slim overall profile within the case. Its architecture reflects a modern approach to everyday mechanical reliability.

40mm Steel Case with Practical Proportions

The stainless steel case measures 40mm in diameter, offering a balanced size that suits a wide range of wrist profiles. Its proportions are engineered for comfort while maintaining the structural strength associated with a professional sports watch.

The case remains relatively slim, supporting ease of wear in both casual and more refined settings. With water resistance rated to 200 metres, it is built to perform reliably across a variety of conditions.

Rouleaux Bracelet and Everyday Wearability

The watch is fitted with the integrated Rouleaux bracelet, a signature design element of the Chronomat collection. Its rounded links provide a secure and flexible fit, adapting naturally to the wrist throughout the day.
Designed with an adjustable system, the bracelet allows for easy sizing changes while maintaining stability, ensuring comfort across extended wear.

Technical Specifications

Case

Stainless steel
Diameter: 40mm
Thickness: 10.99mm
Water resistance: 200m
Crystal: Sapphire

Dial

White dial
Date display

Movement

Breitling Manufacture Calibre B31
Self-winding mechanical
Approx. 78-hour power reserve

Bracelet

Stainless steel Rouleaux bracelet