The Breitling Navitimer B01 AB0137241L1A1 is not a shy watch. It’s large, technical and instantly recognisable as a Navitimer, with the classic circular slide-rule bezel wrapped around a striking green dial. Add Breitling’s in-house Breitling Navitimer B01 AB0137241L1A1 and a solid steel bracelet, and you get a modern luxury pilot’s chronograph built on one of the most famous aviation watch designs ever made.
If you want a discreet dress piece, this isn’t it. If you want a bold, historically important pilot’s watch with real mechanical depth, this reference deserves a very serious look.
Key Specifications
| Feature | Details |
|---|---|
| Model | Breitling Navitimer B01 Chronograph 46 |
| Reference | AB0137241L1A1 |
| Movement | Breitling Caliber B01, automatic (in-house) |
| Power Reserve | Approx. 70 hours |
| Chronograph Layout | Central chronograph seconds, 30-minute and 12-hour counters |
| Case Diameter | 46 mm |
| Case Thickness | Around 14 mm (approx.) |
| Case Material | Stainless steel |
| Bezel | Bidirectional rotating slide-rule bezel |
| Crystal | Sapphire, cambered, anti-reflective on both sides |
| Caseback | Sapphire exhibition back, screwed-in |
| Dial | Green, tri-compax layout with applied indices |
| Bracelet | Stainless-steel bracelet with folding clasp |
| Water Resistance | 3 bar / 30 m (splash/light water only) |
| Functions | Hours, minutes, small seconds, date, chronograph |
Design & Case – Classic Navitimer, Big Presence
Breitling Navitimer B01 AB0137241L1A1 The first thing you notice is the size. At 46 mm, this Navitimer is built to look and feel like a proper pilot’s instrument. The stainless-steel case has real wrist presence, especially combined with the detailed bezel and busy dial.
- The case profile is substantial but nicely shaped, with flowing lugs and polished accents that catch the light.
- Brushed surfaces on the flanks and bracelet keep it from looking too flashy.
- The cambered sapphire crystal adds a vintage-style distortion at the very edge, which suits the retro-aviation character of the watch.
On the wrist, it feels solid and confident. It’s a watch you notice across the room, which is exactly what some Navitimer fans want.
Breitling Navitimer B01 AB0137241L1A1 Dial & Bezel – Green Sunburst and the Famous Slide Rule
The Breitling Navitimer B01 AB0137241L1A1 green dial is what gives this reference its unique personality. Depending on the light, it can go from deep, almost forest green to a brighter sunburst tone, making it a pleasure to look at.
Key dial features:
- Tri-compax layout with three sub-dials (usually at 3, 6 and 9 o’clock) for chronograph minutes, chronograph hours and running seconds.
- A neatly integrated date window that doesn’t disturb the overall symmetry.
- Applied hour indices and well-proportioned hands with luminous material for night-time legibility.
- A fine central chronograph seconds hand that stands out against the green background.
Around the dial is the signature circular slide-rule bezel. Historically, pilots used it to calculate fuel consumption, speed, distance and unit conversions. Today, most owners won’t rely on it for flight planning, but it remains a distinctive and functional design element that makes a Navitimer look like nothing else.
The bezel is bidirectional, with a satisfying feel when you rotate it. It adds to the “instrument panel” impression that defines the Navitimer line.
Movement – In-House Breitling Caliber B01
Inside this watch beats the Breitling Navitimer B01 AB0137241L1A1, the brand’s flagship in-house automatic chronograph movement.
Highlights:
- Automatic winding with a power reserve of around 70 hours, so you can set it down for a weekend and still find it ticking.
- Modern 4 Hz beat rate for a smooth seconds hand and stable timekeeping.
- High-grade chronograph architecture with a column wheel and vertical clutch, giving crisp pusher feel and clean chronograph engagement.
- Chronometer-grade accuracy, with the movement designed to meet strict timing standards.
Through the sapphire caseback, you can see the movement’s rotor and bridges, which is a nice reward for anyone who loves mechanical watchmaking. It’s a movement designed to be both technically impressive and practical for daily wear.
Water Resistance & Everyday Practicality
Despite its rugged, tool-watch look, this Breitling Navitimer B01 AB0137241L1A1 is not a dive watch. With a rating of 3 bar / 30 metres, it is:
- Suitable for everyday splashes, rain and careful hand-washing.
- Not recommended for swimming, showering or any water sports.
That’s consistent with its heritage as an aviation instrument, not a marine tool. If you need heavy water resistance, Breitling has other lines better suited to that purpose.
Comfort, Bracelet & Wrist Feel
The Breitling Navitimer B01 AB0137241L1A1 is paired with a stainless-steel bracelet, which helps balance the weight and size of the 46 mm case.
- The bracelet’s multi-link design drapes nicely around the wrist and spreads the weight evenly.
- A sturdy folding clasp keeps it secure while still being easy to open and close.
- When sized correctly, it feels solid but not uncomfortable, although the overall heft will always be part of the experience.
On larger wrists, the watch looks proportional and purposeful. On smaller wrists, it will wear quite large and may feel more like a statement piece than a daily driver. If you like big watches, this is a major part of the appeal.
Who Is the Breitling Navitimer B01 AB0137241L1A1 For?
This particular Navitimer is perfect if you:
- Love classic pilot chronographs and want a watch with real history behind its design.
- Prefer watches with strong wrist presence rather than slim, understated dress pieces.
- Appreciate the idea of an in-house chronograph movement with modern technical features.
- Like the green dial trend, but still want something grounded in a long-running, iconic model line.
It may not be ideal if you:
- Have a very small wrist and prefer compact, discreet watches.
- Need serious water resistance or a watch to wear in the pool regularly.
- Want minimal or ultra-clean dial designs – the Navitimer is busy by nature.
- Are looking for smartwatch functions like notifications, step counting or heart-rate monitoring.
Intro to Verdict – How to Judge This Watch
To judge the Breitling Navitimer B01 AB0137241L1A1 fairly, you should see it as:
- A heritage aviation chronograph, not a generic fashion watch.
- A mechanically serious timepiece with an in-house movement and complex slide-rule bezel.
- A bold, large watch that intentionally makes a statement on the wrist.
The key question is simple:
Do you want a big, green-dial pilot’s chronograph that embodies the classic Navitimer look with modern mechanics?
If yes, this model is exactly that.
Final Verdict – Navitimer B01 AB0137241L1A1 in Summary
The Breitling Navitimer B01 AB0137241L1A1 is a watch for enthusiasts who know what they’re buying. It offers:
- The unmistakable Navitimer slide-rule design.
- A striking green dial that feels modern but still timeless.
- A robust, well-finished 46 mm steel case and bracelet with real wrist presence.
- The excellent Caliber B01 movement with long power reserve and high-end chronograph technology.
It Breitling Navitimer B01 AB0137241L1A1 isn’t the most versatile choice for every wrist size or every situation, and it’s not made for the swimming pool. But for collectors and aviation fans who want the full Navitimer experience in its boldest form, this reference is a powerful, character-filled option that combines history, engineering and style in one impressive package.
Disclaimer
- All specifications (such as case size, water resistance, movement type and power reserve) are based on commonly available technical information for the Breitling Navitimer B01 AB0137241L1A1. Exact details can vary slightly depending on production batch and region.
- Real-world performance (accuracy, power reserve and durability) can vary depending on wear, servicing, and environmental conditions.
- Water resistance of 3 bar / 30 metres is intended only for everyday splashes and should not be relied on for swimming, diving or prolonged water exposure.
- This Breitling Navitimer B01 AB0137241L1A1 article is intended for information and general guidance only and should not be considered financial or purchase advice. Always confirm current specifications, pricing, warranty terms and availability with an authorised Breitling retailer before making a final buying decision.