Head to head
Alpina Seastrong Diver 300 Heritage Automatic AL-525S4H6 vs Auricoste Spirotechnique
Two automatic watches from different brands, €45 apart, recorded at Tempus on 12 November 2026.
What the spec sheets say
The Alpina Seastrong Diver 300 Heritage Automatic AL-525S4H6 leads on 1 point (thickness), the Auricoste Spirotechnique on 0.
- Choose the Alpina Seastrong Diver 300 Heritage Automatic AL-525S4H6 if you prefer a slimmer case.
- Choose the Auricoste Spirotechnique if you prefer its brand or its design: the spec sheet gives it no edge.
Line by line
CriterionAlpinaAuricoste
Price at our check€1,795€1,750
MovementAutomaticAutomatic
CalibreAL-525 (Base SW200)Sellita SW200
CrystalSapphireSapphire
Water resistance300 m300 m
Diameter42 mm42 mm
Thickness12.3 mmAdvantage12.85 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 Alpina Seastrong Diver 300 Heritage Automatic AL-525S4H6 or the Auricoste Spirotechnique?
The Auricoste Spirotechnique, at €1,750 against €1,795 at our check on 12 November 2026.
Which is more water-resistant?
Neither: both are water-resistant to 300 m.
Do they have the same crystal?
Yes, a sapphire crystal on both.