Photo: Tempus Shop
Catalogue / Longines / ref. L2.839.4.52.2
Longines Ultra-Chron Carbon 43mm - L2.839.4.52.2
The Longines Ultra-Chron Carbon 43mm is an automatic watch, 43 mm across, with a sapphire crystal, water-resistant to 300 m. It was listed at €5,400 at Tempus at our check on 12 November 2026. It costs 96% more than the median of the 383 automatic Longines watches in the catalogue (€2,750).
Where to buyChecked 12 November 2026
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Who it suits
Anyone who swims, dives or wants a watch that never needs babying.
Strengths
Automatic movement · Sapphire crystal · Water-resistant to 300 m
Limits
43 mm diameter
Reading the spec sheet
What the spec sheet says
- Automatic movement. It winds itself on the wrist, with no battery.
- Sapphire crystal. The most scratch-resistant option.
- Water-resistant to 300 m. Swimming and diving without a second thought.
- Titanium case. Noticeably lighter than steel.
- 43 mm diameter. A large case, worth trying on first if your wrist is slim.
Analysis based on the retailer’s spec sheet, without handling the watch.
- Brand
- Longines
- Diameter
- 43 mm
- Crystal
- Scratch-resistant sapphire crystal, multi-layer anti-reflective coating
- Movement
- Automatic
- Water resistance
- 300 m (30 bar)
- Dial colour
- Anthracite
- Reference
- L2.839.4.52.2
Questions
The short answers
Is the Longines Ultra-Chron Carbon 43mm an automatic watch?
Yes. Its movement is automatic: it winds itself with the motion of the wrist.
Can you swim with the Longines Ultra-Chron Carbon 43mm?
Yes. It is water-resistant to 300 m, which covers swimming and diving.
Does the crystal of the Longines Ultra-Chron Carbon 43mm scratch?
It has a sapphire crystal, the most scratch-resistant kind.
What size is the Longines Ultra-Chron Carbon 43mm?
Its case measures 43 mm in diameter.
How much does the Longines Ultra-Chron Carbon 43mm cost?
It was listed at €5,400 at Tempus at our check on 12 November 2026.
Where it ranks
This watch appears in
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