Head to head
Laco vs Zeppelin Méditerranée OpenHeart 9666-5
Two automatic watches from different brands, €21 apart, recorded at Tempus on 12 November 2026.
What the spec sheets say
The Laco leads on 1 point (crystal), the Zeppelin Méditerranée OpenHeart 9666-5 on 1 (price at our check).
- Choose the Laco if you want a crystal that resists scratches better.
- Choose the Zeppelin Méditerranée OpenHeart 9666-5 if you want to pay less (a €21 gap).
Line by line
CriterionLacoZeppelin
Price at our check€390€369Advantage
MovementAutomaticAutomatic
CalibreLaco 2S (base Miyota 82S0)Miyota 82S5
CrystalSapphireAdvantageMineral
Water resistance50 m50 m
Diameter39 mm40 mm
Thickness11.55 mm12 mm
Comparison based on the retailer’s spec sheets, without handling the watches. Criteria with no objective winner (diameter, calibre) are left undecided.
Questions
Short answers
Which is cheaper, the Laco or the Zeppelin Méditerranée OpenHeart 9666-5?
The Zeppelin Méditerranée OpenHeart 9666-5, at €369 against €390 at our check on 12 November 2026.
Which is more water-resistant?
Neither: both are water-resistant to 50 m.
Do they have the same crystal?
No. The Laco has a sapphire crystal, the Zeppelin Méditerranée OpenHeart 9666-5 a mineral one.