B Navitimer B01 Chronograph – 46 mm Stainless Steel – Ref# AB0137241L1A1

The B Navitimer B01 Chronograph Ref# AB0137241L1A1 is a modern reinterpretation of the legendary pilot’s watch, honoring its aviation heritage while embracing contemporary refinement. Originally launched in 1952 and officially adopted by the Aircraft Owners and Pilots Association (AOPA) in 1954, the Navitimer remains an icon of precision, functionality, and timeless design.

This version features a 46 mm polished stainless steel case, a vibrant green dial, and the iconic AOPA wings at 12 o’clock, combining heritage aesthetics with modern flair. The bidirectional slide rule bezel preserves its aviation utility, enabling in-flight calculations while offering a signature touch of sophistication.

Inside, the watch houses the in-house B 01 caliber, a COSC-certified automatic chronograph movement with a 70-hour power reserve, 28,800 vibrations/hour, and 47 jewels, ensuring robust performance and chronometric precision. The polished stainless steel bracelet integrates seamlessly with the case, providing both durability and comfort for everyday wear.

Whether in the skies or in a boardroom, the Navitimer B01 Chronograph blends technical mastery, bold style, and historical significance into one unmistakable timepiece.

✅ Key Specifications

• Brand: B

• Model: Navitimer B01 Chronograph

• Reference: AB0137241L1A1

• Case Material: Polished stainless steel

• Case Diameter: 46 mm

• Bezel: Bidirectional, slide rule

• Dial: Green with three subdials and red chronograph seconds hand

• Bracelet: Polished stainless steel

• Clasp: Folding clasp

• Crystal: Cambered sapphire, glareproofed on both sides

• Water Resistance: 3 bar / 30 m / 100 ft

• Movement: B 01 Manufacture, automatic, COSC-certified

• Chronograph Functions: 1/4-second, 30-minute, 12-hour counters

• Power Reserve: ~70 hours

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

• Jewels: 47

• Calendar: Date window integrated on dial

✅ Highlights

• Heritage-inspired design rooted in aviation history

• Bold 46 mm case with a striking green dial

• COSC-certified in-house B 01 movement with 70-hour power reserve

• Functional bidirectional slide rule bezel

• Iconic AOPA wings at 12 o’clock, a nod to its legendary roots