Pre-Owned
Longines HydroConquest Ceramic Chronograph 43mm Black Dial/Strap 300m L38834569
Longines HydroConquest Ceramic Chronograph 43mm Black Dial/Strap 300m L38834569
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Selling my Longines HydroConquest Ceramic Chronograph 43mm on the black rubber strap.
One of my favourite dive chronographs. I love the monochrome colourway with the small pops of red on the chronograph hands. Very sporty and masculine - a perfect summer chronograph diver with serious wrist presence.
Comes with a valuation certificate for £1,880.
Good cosmetic condition with light signs of wear on the case and lugs.
The main imperfection is a small dent on the lower side of the case around 9 o'clock. It's not particularly noticeable during normal wear but it is there and I have tried to show it clearly in the photos.
The rest of the watch is in fantastic shape.
The AR coated sapphire crystal is pristine and unmarked. Overall it looks fantastic on the wrist.
The rubber strap is in fantastic condition and is currently sized to fit roughly an 8 inch wrist, so there is plenty of room to cut it shorter if required.
Excellent mechanical condition (timegrapher tested across 5 positions):
Approximately +1 to +5 s/day depending on position, with strong 295° to 336° amplitude and excellent 0.0 to 0.3 ms beat error.
The Longines L688 automatic column-wheel chronograph movement is running very strongly overall, with excellent amplitude, very low beat error and outstanding positional consistency with only around 4 s/day variation across the tested positions.
Chronograph functions as expected and resets cleanly with no issues.
Full set including:
- Outer cardboard box - front flap has come away and is secured with tape, fairly common on these older Longines boxes
- Inner presentation box - great condition
- Warranty card dated 22.07.2020
- Valuation certificate
- Instructions booklet
- Longines date changing tool
- Swing tags

Condition, delivery & returns
Authenticity & Inspection
Watches are individually sourced and inspected by Zero Hour Watches before sale. See the description and photographs for details of this particular watch.
Condition & Photography
Please review all photographs carefully, as they form part of the description. Notable imperfections are photographed and described where possible. See the individual listing for condition and any test results.
Water Resistance
For pre-owned watches, water resistance should not be assumed unless the individual listing states a recent pressure test. Avoid water exposure if it has not been verified.
Shipping
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See our Shipping Policy for full details.
Returns
For UK consumer online purchases, you can cancel without giving a reason within 14 days after delivery, then have 14 days to send the item back. Statutory rights for faulty or misdescribed goods remain unaffected. Read the full Refund Policy.
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