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

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

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

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)

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