Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 1

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 2

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 3

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 4

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 5

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 6

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 7

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 8

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 9

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 10

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 11

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 12

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 13

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 14

Thumbnail [WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit 15

Model:	Longines Hydroconquest	Last Scraped:	May 10, 2025, 2:47 p.m.
Username:	mono708	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

**Watch Details:** • Model: Longines HydroConquest 39mm • Reference: L3.780.4.56.6 • Size: 39 mm stainless steel case • Dial: Black sunray, applied indices, date at 3 o’clock • Bezel: Matte black ceramic, unidirectional • Crystal: Sapphire, AR-coated (AR is exceptional on this watch!) • Movement: Longines L888 automatic (up to 72 hr power reserve) • WR: 300 m • Crown: Screw down **Condition**: • Purchased new from authorized dealer in December 2024 • Overall very good—light desk-wear including a few small “must-be-looking-closely” hairline scratches on polished section of center links (see photos). • Happy to provide more pictures, video and/or conduct a video call if desired. • No crystal or bezel damage. **Included:** • Full kit: inner + outer boxes, warranty card (valid until Dec 2026), instruction manual, hang tag • All original bracelet links included • Manufacturer’s sticker still on caseback Photos: [https://imgur.com/a/1MpVUvQ](https://imgur.com/a/1MpVUvQ) **Price & Shipping:** • $999 USD shipped to CONUS locations only. • Payment via PayPal F&F or G&S for additional 3.5% **Shipping & Returns:** • Ships from east coast (USA) next business day after payment clears • Shipping insurance will be provided by me, and it will require an adult signature at delivery.

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Highest:	$2,500	Lowest:	$400
Median:	$999.00	Std. Dev:	±$467.24

Estimated Private Party Value $800 — $1,583


	Established:	1832
	Website:	https://www.longines.com/
	Country of Origin:	Switzerland

Longines (French pronunciation: [lɔ̃ʒin], lawn-zheen) is a watch company based in Saint-Imier, Switzerland. Founded by Auguste Agassiz in 1832, it is currently owned by the Swatch Group. Its winged hourglass logo is the oldest registered trademark for a watchmaker.

Based in Saint-Imier since 1832, the Compagnie des Montres Longines Francillon S.A. was among the world’s leading watch companies. In 2007, Longines had its 175th anniversary. The brand evolved from a comptoir to a full-fledged manufacturing operation and then back down to an établisseur today, since the early 1980s, as a Swatch Group company.

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