Photo: Tempus Shop
Catalogue / Longines / ref. L2.537.4.72.6
Longines ULTRA-CHRON CLASSIC 37mm acier
The Longines ULTRA-CHRON CLASSIC 37mm acier is an automatic watch, 37 mm across, with a sapphire crystal, water-resistant to 50 m. It was listed at €3,850 at Tempus at our check on 12 November 2026. It costs 40% 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 wants a mechanical watch for daily wear.
Strengths
Automatic movement · Sapphire crystal
Limits
Water-resistant to 50 m
Our view
Decent, without standing out
47 of the 131 automatic watches within 20% of its price are better equipped (crystal, water resistance, titanium). You choose it for its design or its brand, not for its spec sheet.
Depending on what you want
- If you plan to swim with it, take the Longines LEGEND DIVER BRONZE 42mm instead: water-resistant to 300 m, at €3,450.
- If you prefer a case with more presence, the Vulcain Anniversary Heart Calendar measures 42 mm, at €3,630.
- If you want to spend less without losing anything on the spec sheet, the Auricoste SM300 Scuba Master - Jubilé costs €2,590.
- If you like the model but not this version, see the Longines ULTRA-CHRON CLASSIC 40mm acier, at €3,850.
Reading the spec sheet
What the spec sheet says
- Automatic movement. It winds itself on the wrist, with no battery, using calibre L836.6.
- Sapphire crystal. The most scratch-resistant option.
- Water-resistant to 50 m. A careful swim is fine, diving is not.
Analysis based on the retailer’s spec sheet, without handling the watch.
- Brand
- Longines
- Gender
- Men
- Calibre
- L836.6
- Case material
- Steel
- Strap material
- Steel
- Diameter
- 37mm
- Crystal
- Sapphire
- Movement
- Automatic
- Thickness
- 10.9mm
- Water resistance
- 50 m (5 bar)
- Functions
- Date
- Case back
- Screw-down
- Reference
- L2.537.4.72.6
At this price
Alternatives from other brands
Same type of movement, within 20% of the price.
Questions
The short answers
Is the Longines ULTRA-CHRON CLASSIC 37mm acier an automatic watch?
Yes. Its movement is automatic (calibre L836.6): it winds itself with the motion of the wrist.
Can you swim with the Longines ULTRA-CHRON CLASSIC 37mm acier?
With care. It is water-resistant to 50 m: surface swimming is possible, diving is not.
Does the crystal of the Longines ULTRA-CHRON CLASSIC 37mm acier scratch?
It has a sapphire crystal, the most scratch-resistant kind.
What size is the Longines ULTRA-CHRON CLASSIC 37mm acier?
Its case measures 37 mm in diameter and 10.9 mm thick.
How much does the Longines ULTRA-CHRON CLASSIC 37mm acier cost?
It was listed at €3,850 at Tempus at our check on 12 November 2026.
Where it ranks
This watch appears in
Official brand video
The collection on video
Same brand
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