🕰️ B Navitimer 1 B01 Chronograph 43 – Ref. AB0121211B1X2 (Leather Strap)

Aviation Heritage Meets Modern Precision

The B Navitimer 1 B01 Chronograph 43 stands as a modern icon in aviation-inspired watchmaking. Housed in a 43 mm polished stainless steel case, this chronograph balances bold wrist presence with timeless craftsmanship, embodying both technical excellence and refined style.

💎 Dial & Design

• Dial: Black sunburst with three contrasting silver chronograph subdials for exceptional legibility

• Bezel: Iconic bi-directional slide rule, functional for navigation and calculations

• Hands & Markers: Luminous baton hour markers and hands, red-tipped central chronograph hand for a striking focal point

• Date: Display between 4 and 5 o’clock

⚙️ Movement

• Caliber: B Manufacture Caliber B01, in-house automatic movement

• Certification: COSC chronometer-certified

• Power Reserve: ~70 hours

• Mechanics: Column-wheel chronograph and vertical clutch

• Frequency: 28,800 vph (4 Hz), 47 jewels

🔗 Strap & Case

• Strap: Black calfskin leather with folding clasp for secure and comfortable wear

• Caseback: Sapphire exhibition for a clear view of the finely finished movement

• Thickness: ~14.2 mm

• Water Resistance: 30 m / 3 ATM

📋 Key Specifications