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Specification
- Product Code 40991732
- Manufacturer Product Number 40991732/AS09262
- Guarantee Analog Shift 1 Year Mechanical Guarantee
- Category Pre-Owned Watches
- Brand Pre-Owned Longines
- Watch Markers Non-Luminous
- Water Resistant Not Guaranteed
- Recipient Unisex
- Movement Automatic
- Case Material Stainless Steel
- Dial Color Silver
- Strap Material Leather
- Diameter 47.5mm
- Brand Collections Lindbergh
- Measurements Pre-Owned Longines


















Pre-Owned Longines Lindbergh Hour Angle 90th Anniversary 40991732/AS09262
$3,850.00Items in your bag will be held for 1 hour

- View our Returns Policy
- Authorized Luxury Retailer
- Gift Wrap Available In-Store
available finance plans for this item
- Product Code 40991732
- Manufacturer Product Number 40991732/AS09262
- Guarantee Analog Shift 1 Year Mechanical Guarantee
- Category Pre-Owned Watches
- Brand Pre-Owned Longines
- Watch Markers Non-Luminous
- Water Resistant Not Guaranteed
- Recipient Unisex
- Movement Automatic
- Case Material Stainless Steel
- Dial Color Silver
- Strap Material Leather
- Diameter 47.5mm
- Brand Collections Lindbergh
- Measurements Pre-Owned Longines
In a time before GPS, sailors and aviators had to rely on mathematics, knowledge of celestial bodies, and — perhaps most crucially — a good chronometer to find their way home.
When Charles Lindbergh returned from his pioneering solo flight across the Atlantic, he sought a way to simplify the complicated equations and the array of tools needed to calculate longitude. Approaching Longines, he proposed an unusual timepiece that would allow a navigator to make these calculations quite literally on fly. The result was the Longines ‘Hour Angle’ watch.
Using the bezel (which featured an ‘equation of time’ scale for calculating the difference between a fluctuating ‘Earth’ day and a standardized 24-hour day); an inner, rotating dial disk for synchronizing the seconds hand; and dial markings that allowed the wearer to calculate his position within the Earth’s 360-degree rotation, a pilot could effectively tell his position at any point mid-flight. Until the advent of LORAN, radio navigation and — much later — GPS, this system was the most effective navigational aid in use.
Longines has since issued numerous iterations of the Hour Angle, including this particular piece produced to celebrate 90 years since Lindbergh’s famed transatlantic flight. That took 33 hours, 30 minutes, and 29.8 seconds in case you were wondering! This model was released in 2017 and features a 47.5mm stainless steel case with a black PVD bidirectional friction bezel and a large ‘onion’ crown.
The bezel function allows the wearer to adjust for the daily variations in the equation of time, while the galvanic black disk in the center of the dial rotates to synchronize the seconds with a radio time signal. The watch can thus be used to indicate the hour angle in degrees and in minutes of arc. Amazingly, it can also be used to tell the time!
Powered by an automatic-winding Calibre L699 movement, it comes fitted with a signed brown leather strap with contrast stitching, as well as a signed buckle. It also comes complete with its inner and outer box set, books, hangtags, strap extension, and is numbered 9 out of 90 pieces produced,
Interesting, vintage-inspired, and cool as hell, the Longines Hour Angle is the perfect watch for those intrigued by horological history or aeronautical adventuring!
Delivery Information
Free Expedited Delivery on Orders $100 and Up (Estimated 1-3 Days)
Our secure shipping service operates Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For security reasons, an adult signature is required for every delivery. Watches of Switzerland does not deliver to P.O. boxes or third-party forwarding services. For more information about delivery, click here. Tracking information will be made available upon shipping.
$15 Flat Fee on Orders Under $100 (Estimated 1 - 2 weeks)
Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For more information about delivery, click here. Tracking information will be made available upon shipping.
If you have any questions or concerns regarding your order, please contact the Watches of Switzerland Client Services.
Returns Policy
Our commitment to you does not end at delivery. We offer the following return services to make your experience as pleasant as possible.
10-Day Returns For Timepieces:Timepieces purchased online can be returned or exchanged within 10 days from when they are shipped or collected.
30-Day Returns For All Other Purchases:All other online purchases can be returned or exchanged within 30 days from when they are shipped or collected.
On presentation of the original receipt, your purchases may be returned or exchanged at any of our store locations. Alternatively, you may elect shipping to our facility with all the original paperwork. All refunds must be credited to the same tender used for the original purchase. To return the online purchases through secure shipping service, please contact our client service team who will provide you the shipping label.
All returns or exchanges must be in new, unworn condition, with no scratches or markings, not sized or adjusted and in their original packaging and with warranty cards / certificated and instruction booklets.