Pre-Owned
Longines Spirit Flyback Chronograph 42mm Black Automatic COSC L3.821.4.53.6
Longines Spirit Flyback Chronograph 42mm Black Automatic COSC L3.821.4.53.6
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One of Longines' flagship models and an absolute beast of a tool/pilot chronograph.
It's a chunky aviator with a phenomenal design and proper masculine wrist presence. Despite the size I find it very well proportioned, and it looks incredible on the wrist.
Longines 5-year warranty until 17.07.2029
RRP £4,350
The flyback complication is both genuinely useful and incredibly satisfying to use, allowing the chronograph to be instantly reset and restarted with a single push.
Great cosmetic condition - the watch has been worn and loved, so there are light signs of casual wear on the case and bracelet visible upon close inspection. Nothing particularly obtrusive overall and it presents very well on the wrist.
The domed AR-coated sapphire crystal is pristine and unmarked, as is the sapphire caseback crystal.
If you prefer it on a strap, I am also selling a brown Longines strap with the upgraded microadjustable deployant clasp which goes really nicely with this model.
Excellent mechanical condition - timegrapher tested across five positions:
Approximately -2 to 0 sec/day depending on position, with 253 to 280° amplitude and 0.2 to 0.7 ms beat error at 28,800 vph.
The COSC Longines L791.4 automatic flyback chronograph movement is running very well overall, showing healthy amplitude, excellent rate stability and highly consistent positional performance across the tested positions.
Chronograph and flyback functions work as expected.
Comes full set with:
- Outer cardboard box
- Inner wooden presentation box
- Longines warranty card (17.7.2024 Beaverbrooks)
- COSC certificate card
- Instruction manual
- Authenticity certificate
A phenomenal modern pilot chronograph and probably one of the coolest watches in the current Longines lineup.
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Condition
Please review photos carefully - they form part of the description. Watches are pre-owned and may show light signs of wear consistent with age. Timekeeping is measured on a timegrapher, but we do not guarantee accuracy equivalent to a brand new unit purchased from an authorised dealer.
Water Resistance
Unless specifically stated with a recent pressure-test date, water resistance is not guaranteed.
Shipping
Shipping Policy
At Zero Hour Watches, every order is handled with care and attention to detail. All watches are fully inspected, photographed, and safely packaged before dispatch.
UK Shipping
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Fully insured tracked delivery on all orders.
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Free shipping on orders over £600
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Orders are usually dispatched within 1 working day.
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Deliveries are made via Royal Mail Special Delivery or equivalent next-day insured service.
International Shipping
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Fully insured tracked shipping available worldwide via UPS.
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Delivery times vary by destination (typically 5–10 working days).
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Buyers are responsible for any customs duties or import taxes that may apply.
Handling & Insurance
All watches are shipped with full insurance cover until they arrive safely with you. Tracking details are provided immediately after dispatch.
If you have any questions about delivery times or special shipping requests, feel free to get in touch — I’m always happy to help.
Inspection Policy
If you’d like extra peace of mind, you’re welcome to have the watch inspected by any independent jeweller or watchmaker in London before purchase.
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Inspections must be arranged in advance.
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The buyer covers any associated costs.
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Watches will only be released for inspection under agreed terms to ensure full insurance coverage.
Returns
All watches at Zero Hour Watches are sold as described and as seen. Each piece is carefully inspected, tested for accuracy, and photographed in detail to ensure you know exactly what you’re buying.
Because every watch is a unique pre-owned item, we do not accept returns unless the watch arrives materially different from its description. Please read listings carefully and review all photos before purchase — transparency is at the heart of what I do.
My goal is always a smooth, honest, and professional transaction for both sides. If you have any concerns before or after purchase, please reach out — I’m always happy to help.
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