Breitling Navitimer 1 Chronograph Automatic Chronometer

Product Overview

The Breitling Navitimer 1 Chronograph Automatic Chronometer AB0121211B1A1 is a precision-engineered men’s watch that blends aviation heritage with modern Swiss craftsmanship. Designed for professionals and enthusiasts who value accuracy and style, this timepiece features a bold black dial housed in a 43mm stainless steel case, delivering both presence and legibility. At its core is the Breitling Manufacture Caliber B01, a COSC-certified chronometer movement renowned for its reliability and performance. This model is part of the iconic Navitimer collection, originally created in 1952 for pilots and still favored by those who demand functional elegance. With its automatic winding mechanism and integrated chronograph function, it serves as both a tool watch and a statement accessory, seamlessly transitioning from cockpit to boardroom.

The Navitimer 1 B01 stands out with its aviation-inspired design cues, including the signature circular slide rule bezel—a feature that has defined the collection for decades. This functional element allows users to perform essential flight calculations such as fuel consumption, airspeed, and climb rates, making it more than just a timepiece. The black dial enhances contrast and readability, while luminous markers and hands ensure visibility in low-light conditions. Crafted with attention to detail, the watch reflects Breitling’s commitment to durability, precision, and timeless aesthetics.

Key Features

• Automatic Chronometer Movement – Powered by the in-house Breitling Caliber B01, this movement is certified by the Contrôle Officiel Suisse des Chronomètres (COSC), ensuring exceptional accuracy and durability over time. The movement operates at 28,800 vibrations per hour and offers a power reserve of approximately 70 hours, allowing for consistent performance even when not worn for a day or two.
• Chronograph Function – The integrated chronograph allows precise measurement of elapsed time, making it ideal for timing events, flights, or daily tasks where split-second accuracy matters. The subdials at 3, 6, and 9 o’clock display 30-minute, 12-hour, and running seconds respectively, providing comprehensive time-tracking capabilities.
• 43mm Case Design – The substantial yet balanced case size offers a commanding presence on the wrist while maintaining wearability for most men, striking a perfect balance between sport and sophistication. The stainless steel construction ensures resilience against daily wear, and the case is finished with a combination of brushed and polished surfaces for a refined look.
• Black Dial with Luminous Markers – The high-contrast black dial enhances readability in all lighting conditions, supported by luminous hour markers and hands for low-light visibility. The dial layout includes applied indices and a date window at 6 o’clock, maintaining symmetry and clarity.
• Aviation-Inspired Slide Rule Bezel – A signature element of the Navitimer line, the bidirectional rotating bezel features a circular slide rule that enables pilots and travelers to perform in-flight calculations such as fuel consumption, climb rates, and conversions. This mechanical calculator adds both utility and historical significance to the watch.
• Sapphire Crystal – The scratch-resistant sapphire crystal protects the dial from daily wear while providing clear, distortion-free viewing from any angle. It is also treated with an anti-reflective coating to reduce glare and improve legibility in bright environments.
• Water Resistance – Engineered to withstand water pressure up to 100 meters (10 bar), this watch is suitable for swimming and snorkeling but not deep-sea diving. It is designed for everyday exposure to water, including rain and accidental submersion.

Technical Specifications

• Model Number: AB0121211B1A1
• Manufacturer: Breitling
• Department: Men
• Case Diameter: 43mm
• Movement: Automatic, Breitling Manufacture Caliber B01
• Chronometer Certification: COSC Certified
• Dial Color: Black
• Bezel: Bidirectional, with slide rule scale
• Crystal: Sapphire
• Water Resistance: 100 meters (10 bar)
• Date First Available: March 13, 2018
• ASIN: B07M6P7H3Q
• Warranty: Refer to manufacturer’s official policy for coverage details

Benefits & Use Cases

This watch is built for individuals who appreciate technical excellence and timeless design. Pilots and aviation professionals will find the slide rule bezel invaluable for real-time flight calculations, while frequent travelers benefit from its dual-time functionality and robust construction. The automatic movement eliminates the need for battery replacements, offering long-term reliability with minimal maintenance. Its 43mm case and classic black dial make it suitable for both casual and formal settings, ensuring versatility across occasions.

Whether worn during business meetings, outdoor adventures, or daily routines, the Navitimer 1 delivers consistent performance and refined aesthetics. The COSC certification guarantees that each watch meets strict precision standards, making it a trusted companion for those who rely on accurate timekeeping. The inclusion of a date function and chronograph subdials adds practical utility, while the iconic design ensures it remains a conversation piece.

Important Notes

While this model is not currently listed as discontinued by the manufacturer, availability may vary depending on regional distribution and stock levels. Always verify current production status before purchase. The product is covered under Breitling’s standard warranty policy, which can be reviewed through official channels or by contacting customer service. Care should be taken to avoid exposure to strong magnetic fields, extreme temperatures, and impacts that could affect movement accuracy. Regular servicing every 5–7 years is recommended to maintain optimal performance. This watch does not include additional accessories beyond the standard manufacturer packaging unless otherwise specified at the time of sale.