[WTS] Superb Longines Ultra-Chron Crosshair On Original Steel Mesh Bracelet - Reference 8309 - Cal. 431 Hi-Beat Automatic - From 1969 - Only $999!

Superb Longines Ultra-Chron Crosshair On Original Steel Mesh Bracelet - Reference 8309 - Cal. 431 Hi-Beat Automatic - From 1969 - Only $999!

Longines - 8309 · $999
This vintage Longines Ultra-Chron features a sleek white sunburst dial with crosshair design and is powered by the Hi-Beat Cal. 431 automatic movement, beating at 36,000 BpH.

  • Condition: Excellent, serviced recently
  • Case size: 35mm
  • Movement type: Cal. 431 Hi-Beat Automatic
Posted at
Dec 13, 2025, 9:38 AM
Sold
[WTS] 1970s Longines Ultra-Chron Ref.8309 | Good Condition (Serviced) | $550

1970s Longines Ultra-Chron Ref.8309 | Good Condition (Serviced) | $550

Longines - 8309 · $550
The 1970s Longines Ultra-Chron Ref.8309 is a chronometer watch that features a silvered sunray dial with applied steel indices and luminous baton hands. It has a high-beat Caliber 431 movement, known for its smooth sweep and accuracy. The watch is in good condition for its age, with a flawless crystal and minor marks on the dial.

  • Condition: Good, serviced
  • Movement: Caliber 43x (in-house)
  • Case size: 34.5mm diameter
  • Dial material: Silvered sunray
Posted at
Dec 3, 2025, 9:37 PM
Expired
[WTS] 1970s Longines Ultra-Chron Ref.8309 (Serviced) | $565

1970s Longines Ultra-Chron Ref.8309 (Serviced) | $565

Longines - 8309 · $565
This is a 1970s Longines Ultra-Chron Ref. 8309, featuring a 34.5mm stainless steel case and a silvered sunray dial with applied steel indices.

  • Condition: Good, serviced
  • Case size: 34.5mm diameter
  • Movement type: In-house caliber 43x
  • Accuracy guarantee: one minute per month
Posted at
Aug 12, 2025, 12:45 PM
Expired
1960's Longines 8309 Ultra-Chron Serviced and Bracelet

1960's Longines 8309 Ultra-Chron Serviced and Bracelet

Longines - 8309 · €899.009
A refined timepiece that embodies the precision and elegance of Swiss watchmaking from the golden era, features a cross-hair sunburst silver dial with applied block-indices and stick hands.

  • Condition: Fully serviced by Longines-certified watchmaker, new mainspring, replacement parts, crown, bezel and crystal
  • Diameter: 34.3mm (without crown)
  • Length: 40.9mm
  • Thickness: 10.2mm (including 3.0mm highly domed acrylic crystal)
Posted at
Jun 2, 2025, 4:18 PM
Expired
[WTS] Sinn 657 S ($1349 shipped worldwide)

Sinn 657 S ($1349 shipped worldwide)

Sinn - 657 S · $1,349
A 2008 Sinn 657 S model with a tonne of tech for the money, discontinued by Sinn. It has an ETA 2824-2 movement and is anti-magnetic as per DIN 8309.

  • Condition: well maintained
  • Case diameter: 41mm
  • Lug width: 20mm
  • Case thickness: 12mm
Posted at
Apr 13, 2025, 5:35 PM
Expired