Rolex Datejust 31 Ref. 178240 (2016) in Oystersteel, featuring a black dial with index markers and Superluminova hands. Serial 2Q1A9XXX. Excellent pre-owned condition, Box & Papers included. Authenticated by Rex Watches NYC — includes condition report, 1-year mechanical warranty, and insured shipping.
$6,995.00
The Leading Independent 3rd Party Provider of Watch Authentication
Rolex Datejust 31 Ref. 178240 (2016) in Oystersteel, featuring a black dial with index markers and Superluminova hands. Serial 2Q1A9XXX. Excellent pre-owned condition, Box & Papers included. Authenticated by Rex Watches NYC — includes condition report, 1-year mechanical warranty, and insured shipping.
| Watch Details | Case | Movement | Bracelet |
|---|---|---|---|
| Brand: Rolex | Material: Oystersteel (Stainless Steel) | Calibre: Rolex 2235 | Material: Oyster steel bracelet |
| Model Name: Datejust 31 | Crystal: Sapphire with Cyclops | Type: Perpetual, self-winding | Type: Oyster bracelet |
| Model Number / Ref: 178240 | Size: 31 mm | Power Reserve: ~48 hours | Clasp: Oysterclasp |
| Year: 2016 | Bezel: Smooth steel bezel | Complication(s): Date | |
| Condition: Excellent | Case Back: Solid | ||
| Gender: Women’s / Unisex | Serial: 2Q1A9XXX | ||
| Box & Papers: Yes | Dial: Black with index hour markers & Superluminova hands & lume |
The Rolex Datejust 31 (Ref. 178240) in black dial is a quintessential blend of elegance, precision, and everyday wearability. This example dates to 2016 and carries the serial 2Q1A9XXX, giving it both collectible significance and modern appeal.
Crafted entirely in Oystersteel, this 31 mm case balances a refined silhouette with daily durability. The smooth bezel keeps the design clean and timeless, allowing the black dial to take center stage. The dial features index hour markers complemented with Rolex’s Superluminova hands & lume, ensuring readability in varying light conditions.
At its heart is the Calibre 2235, a reliable Rolex automatic movement known for its solid execution and robust performance. This calibre provides approximately 48 hours of power reserve and handles the date complication with precision.
At Rex Watches NYC, we thoroughly inspect each Datejust 31 we list. That includes measuring movement accuracy, verifying dial integrity, checking bracelet stretch, and ensuring the serial and model lines match official Rolex records. This listing is supported by our detailed condition report and includes a 1-year mechanical warranty to give you peace of mind.
For collectors and buyers seeking a midsize Rolex that’s both classic and wearable, the 178240 fits beautifully. It brings Rolex’s signature elegance in a size that’s versatile for many wrists, and the black dial option ensures it remains stylish over time.
Certificates are issued by Watch CSA, the industry’s leading independent authority on watch authentication. Watch CSA Certified Pre-Owned certificates are provided for an additional fee at checkout. All watches are shipped to fit the average size wrist (7 1/4″ – 7 1/2″ for men and 6 1/4″ – 6 1/2″ for women). Additional links can be purchased if needed. Note that “B&P” means “box and papers” where stated.
This pre-owned Breitling comes with Bob’s Watches one year warranty
This order is ready for shipment within one (1) business day after the order has been approved and processed. All watch orders are shipped FedEx overnight and are fully insured at no charge to the customer. Please be advised that for any deliveries from Bob’s Watches, a recipient aged 21 years or older must be present to provide a signature upon receipt of the package.
For more information on shipping, please visit our shipping page.
For further details on returns, please check out our return policy page.
This order is ready for shipment within one (1) business day after the order has been approved and processed. All watch orders are shipped FedEx overnight and are fully insured at no charge to the customer. Please be advised that for any deliveries from Bob’s Watches, a recipient aged 21 years or older must be present to provide a signature upon receipt of the package.
For more information on shipping, please visit our shipping page.
For further details on returns, please check out our return policy page.
Choosing Bob’s Watches for your luxury watch purchase ensures unparalleled authenticity and quality. Our stringent authentication process, performed by a team of experts, guarantees that every watch is genuine and original. We offer certified pre-owned watches that meet our high standards for condition and functionality, giving you peace of mind with your Breitling investment. Additionally, our in-house professional servicing ensures that each timepiece is meticulously maintained and performs at its best. Finally, our comprehensive warranty provides long-term support, covering parts and labor.
Breitling’s story began in 1884 when Leon Breitling founded his namesake company in Saint-Imier, Switzerland. With a passion for chronographs and precision timekeeping, Breitling quickly established itself as a pioneer in the world of aviation watches. Throughout Breitling watch’s history, the brand has been synonymous with quality, reliability, and innovation, creating timepieces that have accompanied adventurers, athletes, and aviators on their most daring escapades. From the introduction of the first wrist-worn chronograph in 1915 to the development of the iconic Navitimer in 1952, Breitling has consistently pushed the boundaries of watchmaking. The brand’s commitment to excellence and its strong ties to the world of aviation have earned it a reputation as one of the most respected names in the industry.
We are proud to present a collection of authentic, unworn or pre-owned luxury watches that have been rigorously verified for authenticity. Each timepiece is subject to an extensive authentication procedure, ensuring that every purchase is made with assurance and worn with prestige. We guarantee a shopping experience free from counterfeits.
