Breitling Top Time B21 NB21251A1L1X1 43mm Green Dial Fixed Bezel Bronze With Brown Leather Strap Watch
Case Size
43 MM
Condition
Unworn
Box
Yes
Papers
Yes
Authenticity Guaranteed
Every watch is inspected and authenticated by our in-house experts.
2-Year Warranty
2-Year Warranty on movement and mechanical defects.
Secure Checkout
Secure payments with advanced encryption and fraud protection.
Fully Insured Shipping
Free fully insured overnight shipping.
30-Day Returns
Not satisfied, 30-Day Returns on unworn watches.
Dedicated Watch Specialist
Dedicated watch specialists available before, during, and after your purchase.
The Breitling Top Time B21 NB21251A1L1X1 is a bold and distinctive chronograph powered by the Breitling B21 movement, developed in collaboration with La Joux-Perret. This self-winding mechanical caliber features a 1/4th second chronograph with a 60-minute counter and offers a 55-hour power reserve. Housed in a 43 mm bronze case with a screwed sapphire crystal caseback, it runs at 28,800 v.p.h. and is equipped with 30 jewels for smooth operation.
Designed with both performance and style in mind, the watch includes a fixed bezel, non screw-locked crown with dual gaskets, and water resistance up to 10 bar (100 meters). Its warm brown calfskin leather strap with titanium folding clasp complements the bronze case beautifully, while the sapphire crystal protects the dial. This timepiece combines vintage-inspired charm with modern mechanical precision.
SKU: NWMD8006
Specifications
Original Box
Yes
Original Papers
Yes
Gender
Unisex
Model
NB21251A1L1X1
Product Year
2025
Condition
Unworn
Series
Top Time
Movement
Self-Winding Mechanical
Crystal
Scratch Resistant Sapphire
Dial Type
Analog
Dial Color
Green
Dial Markers
Index Hour Markers
Hands
Luminescent hands
Case material
Bronze
Case diameter
43 MM
Case Shape
Round
Bezel
Fixed
Band Type
Strap
Band Color
Brown
Band material
Calfskin
Clasp
Fold Clasp
Water Resistance
100 meters / 330 feet
Free, fully insured worldwide shipping. Every order ships signature-required and insured for its full value, typically arriving within 1–2 business days domestically.
30-day returns. Return within 30 days in original condition for a full refund. Pay by bank wire to save an additional 3%.
I had an excellent experience purchasing my Audemars Piguet Royal Oak from Watch My Diamonds, and I want to give a special thank you to Mary and Daniel for making the entire transaction so enjoyable. When you’re making a significant purchase remotely, trust and communication matter, and they made me feel comfortable from the beginning. Daniel was very communicative, personable, and easy to work with. He sent clear photos and videos that accurately showed the watch and its condition. When it arrived, it was exactly what I had expected and in great condition. I really appreciated knowing that what I was seeing in the photos and videos was what I would actually receive. He also took my wrist size ahead of time and made sure the watch was properly sized before shipping it. It arrived fitted and ready to wear, which was a thoughtful touch. Being able to put it on immediately and enjoy it made the experience that much better. Daniel shipped the watch immediately, and his follow-through was excellent. The same care he put into communicating with me carried through to preparing and shipping the watch. Mary was also wonderful in helping facilitate the sale, and I appreciated how easy they both made the process. One of my favorite parts of the experience was that we even nicknamed my watch “the Unicorn” because of its rarity. That little detail made the purchase feel personal and memorable. It was fun to share the excitement of finding such a special piece with the people helping me buy it. The watch is beautiful, but Mary and Daniel’s service is a big reason I would come back. They made me feel valued as a customer, and the experience left me wanting to purchase from them again. Thank you, Mary and Daniel, for the great communication, accurate photos and videos, immediate shipping, and attention to getting the fit right. I’m extremely happy with my Unicorn and would highly recommend Watch My Diamonds to anyone looking for a special watch and people who make the buying experience just as enjoyable.
José Manuel Garcia
Excellent service, incredibly fast shipping and very competitive pricing.
taylor wright
Outstanding experience purchasing my Audemars Piguet Royal Oak from WatchMyDiamonds I recently acquired an Audemars Piguet Royal Oak through WatchMyDiamonds in New York’s Diamond District, and the entire process exceeded every expectation I had for a high-end watch purchase. From the first inquiry, the team was knowledgeable, transparent, and professional. They took the time to understand exactly what I was looking for, answered every question about condition, provenance, and details without pressure, and provided clear photos and information. The watch arrived exactly as described impeccable finishing, perfect condition, and complete with box and papers. Authenticity was never in doubt; their expertise and reputation in the luxury watch space give real peace of mind on a piece of this caliber. Communication was responsive and seamless throughout. Shipping was secure, fully insured, and handled with the care you’d expect for a Royal Oak. The overall experience felt personal and high-touch rather than transactional, which is rare when dealing with watches at this level. Highly recommended for anyone serious about acquiring an AP Royal Oak or other fine timepieces. I wouldn’t hesitate to buy from them again.
Ed M
Great service! Ethan was very helpful, and prompt
Aliona Smith
Dan is an amazing guy and was a great pleasure working with.
Brayden Desrochers
Great quality! Daniel is great to work with.. bought 2 Breitling from him..
Branden Ware
⭐⭐⭐⭐⭐ Phenomenal Customer Service and Attention to Detail I had an outstanding experience with Watch My Diamonds. From start to finish, the customer service was exceptional, and the attention to detail was truly impressive. Both Daniel and Dmitry went above and beyond, working with me to bring a small dream to life quickly and without hassle. Their responsiveness, care, and dedication made the entire process smooth and stress-free. It's rare to find a business where every team member is this attentive and genuinely invested in getting things right. I couldn't be happier with the outcome. Highly recommend Watch My Diamonds to anyone looking for quality service & pieces backed by a team that truly cares. Thank you, Daniel and Dmitry, for making this happen!
Gracian BBY
Excellent experience and great customer service!
Adam Crouch
Excellent service would recommend!
Krishna Tewari
Even though FedEx really botched the delivery, Watch my Diamond was great throughout the entire process. They kept in touch with me and helped me navigate everything with FedEx and were great throughout the process. I would definitely use them again and give them my highest rating. The watch was sent quickly and they made the process very easy, in spite of the FedEx snafu. The watch was exactly as described and was exactly what I wanted with all of the attached paperwork and boxes. The packaging they used was excellant and they did a great job making sure that the watch was secure. All around they did a great job and earned these 5 stars.
Edmond Dantes
Great place! Excellent service and very fare prices!
joseph Nicklous
Just made my first purchase with Daniel from Watch My Diamonds. He was very responsive and knowledgeable. Received my watch within 48 hrs. It was better than I expected. When they described the condition as pristine they were right on. Couldn’t be more pleased. Will definitely be doing more business with them. Thanks Daniel!
Very easy and professional process. They upgraded shipping to next day when I needed it (no charge). They took my credit card (no additional charge). I would recommend them again.
HHarry H.Purchased: Rolex
The dealer was very helpful and even though there was a delivery issue (not dealer’s fault) they were great about communicating with me the entire time. They were great and the watch was exactly as described. Packaging was exceptional and I would definitely buy from them again.
KKelley C.Purchased: Rolex
Fantastic communication. Product was as described and delivery was flawless.
GGraham K.Purchased: Rolex
My husband is very pleased with his gift!
HHeidi D.Purchased: Rolex
Easy deal, fast delivery
JJacob S.Purchased: Rolex
Smooth transaction. Quick shipment.
TTim L.Purchased: Rolex
I was very nervous about making a purchase like this over the Internet, but they were great. They are an active storefront jeweler in the diamond District with great reviews even on Reddit & yelp and they get back to you very quickly very professionally I would recommend them to anyone looking to purchase a luxury watch and I look forward to using them again in the future
DDonny S.Purchased: Rolex
Excellent and prompt communication. The watch was, if anything, in better condition than advertised. Despite the store being hit with a blizzard the day my payment cleared escrow, they still delivered the watch in three days.
MMark L.Purchased: Rolex
The watch was delivered on time and was in excellent condition.
Watch is in perfect condition. Vemdor comunicared very well.
Cc***
Positive feedback
I've had the Speedmaster for about 2 weeks now before writing this review. I didn't realize until after my purchase that the photos weren't of the actual watch/model number so I called and spoke with Daniel. He assured me that the watch I was getting was correct and in excellent condition as described and sent photos. When it was received it was truly in EXCELLENT condition and I'm very happy with my purchase. Thank you.
Dd***
Positive feedback
I purchased a higher end Rolex (Sky Dweller) - which is my first time using eBay’s authentication and eBay all together. It was a seamless experience with this seller. They communicated promptly on the message board. The videos online of the authentication process was reassuring. The seller provided an exact description that stayed true of the watch. Truly a great experience for a first time high end watch buyer within a new platform.
Ww***
Positive feedback
Great packaging, feels and looks amazing. Exactly what we bought.
Ss***
Positive feedback
Great customer service, communication as good as I’ve ever experienced, product quality unmatched. I will deal with them again
Bb***
Positive feedback
Couldn’t be happier with my gorgeous watch! It’s perfect!! Thank you very much, I’d been looking for a very long time for one in excellent condition and it is!!
Bb***
Positive feedback
Great communication.
Rr***
Positive feedback
Extremely professional
Tt***
Positive feedback
Beautiful watch - seller was super responsive !
Rr***
Positive feedback
Great item ,as described packed with care many thanks A+++++
Jj***
Positive feedback
Excellent communication & response time. Highly recommend!
Cc***
Positive feedback
Unbelievable watch!! I got the perfect deal!!Plus the service from Daniel was amazing! Thanks so much for the easy transaction and customer service. Brand new in the box came overnight!! Bonus!
José Manuel Garcia
