Maurice Lacroix Aikon Automatic vs Tag Heuer Aquaracer Professional 300
Two divers compared — $1,500–$2,500 vs $2,500–$5,000
Quick Verdict
The Maurice Lacroix Aikon Automatic ($1,500–$2,500) offers Automatic (Sellita SW200-1 base) precision in the tier below the Tag Heuer Aquaracer Professional 300 ($2,500–$5,000). The Aikon Automatic measures 42mm and is rated 200m (20 ATM). The Aquaracer Professional 300 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional divers for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Maurice Lacroix Aikon Automatic | Tag Heuer Aquaracer Professional 300 |
|---|---|---|
| Price | $1,500–$2,500 | $2,500–$5,000 |
| Case Size | 42mm | 43mm |
| Movement | Automatic ML115 | Automatic Caliber 5 |
| Caliber Type | Automatic (Sellita SW200-1 base) | Automatic (ETA 2824-2 / Sellita SW200 base) |
| Power Reserve | 38 Hours | 38 Hours |
| Water Resistance | 200m (20 ATM) | 300m (30 ATM) |
| Crystal | Sapphire Crystal | Sapphire with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Maurice Lacroix's design language vs Tag Heuer's approach
The Maurice Lacroix Aikon Automatic features a Stainless Steel case at 42mm with Sapphire Crystal protection. The Tag Heuer Aquaracer Professional 300 offers Stainless Steel construction at 43mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic ML115 vs Automatic Caliber 5
The Aikon Automatic runs the Automatic ML115 (Automatic (Sellita SW200-1 base), 38 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Aquaracer Professional 300 uses the Automatic Caliber 5 (Automatic (ETA 2824-2 / Sellita SW200 base), 38 Hours reserve) at 28,800 vph (4 Hz). Power reserves are closely matched.
Wearability & Fit
42mm vs 43mm — different wrist presence
At 42mm, the Aikon Automatic wears more compactly on smaller wrists compared to the Aquaracer Professional 300 at 43mm. Water resistance differs: 200m (20 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Maurice Lacroix sits in the lower tier
The Maurice Lacroix Aikon Automatic sits at $1,500–$2,500 and the Tag Heuer Aquaracer Professional 300 at $2,500–$5,000. On the specs that outlast any price: the Aikon Automatic uses Sapphire Crystal with 38 Hours, against Sapphire with Anti-Reflective Coating and 38 Hours on the Aquaracer Professional 300. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 300m (30 ATM)
The Aikon Automatic is rated to 200m (20 ATM) while the Aquaracer Professional 300 handles 300m (30 ATM). The Aquaracer Professional 300 offers superior water resistance.
Materials Face-Off
| Component | Maurice Lacroix Aikon Automatic | Tag Heuer Aquaracer Professional 300 |
|---|---|---|
| Stainless Steel 316L (Marine Grade) | Medical-grade 316L stainless steel with alloy composition: Fe (~65%), Cr (16–18%), Ni (10–14%), Mo (2–3%), Mn (≤2%), C (≤0.03%). The molybdenum content prevents pitting corrosion in chlorinated and saltwater environments. Mixed finishing — polished bezel arms and case flanks with satin-brushed top surfaces. | Stainless steel 316L (medical-grade, with composition Cr 16–18%, Ni 10–14%, Mo 2–3%). Standard mid-range Swiss spec. Not 904L (Rolex Oystersteel) or G |
| Sapphire Crystal (Anti-Reflective Coated) | Synthetic corundum crystal (Mohs hardness 9, second only to diamond) with multi-layer anti-reflective coating for glare reduction. Virtually scratch-proof in daily wear. | Ceramic (zirconia-based ZrO₂) — virtually scratchproof (Mohs ~9), color-stable under UV exposure. The ceramic is sintered, then engraved with dive sc |
| Integrated Bracelet with EasyChange System | Stainless steel integrated links with alternating brushed and polished surfaces. Features Maurice Lacroix's proprietary EasyChange quick-release system — spring-loaded pushers on the case flanks allow strap swaps in seconds without tools. | Synthetic sapphire (Al₂O₃) grown via the Verneuil process, Mohs 9. Anti-reflective coating on interior surface only. Cyclops magnifier above date wind Mohs 9 |
| Clous de Paris Dial Finishing | Mechanical hobnail (Clous de Paris) pattern pressed into the dial blank before color application. This traditional guilloche-adjacent technique creates a grid of raised pyramidal studs that catch and refract light from every angle. Uncommon at this price point. | Super-LumiNova on the hands and indices. Grade and glow duration are not published by the manufacturer for this reference, so neither is claimed here. |
| Super-LumiNova | Applied to the hands and hour markers for legibility in the dark. Maurice Lacroix does not publish the Super-LumiNova grade for this reference, so no emission colour or wavelength is stated. | Stainless steel 316L matching the case. |
Cost of Ownership Compared
The Maurice Lacroix Aikon Automatic saves you $1,551 over 5 years of ownership
Who Should Pick Which
Pick the Maurice Lacroix Aikon Automatic if…
- Enthusiasts wanting the integrated-bracelet luxury sports watch look under $2,000
- Daily wearers who need genuine 200m WR with screw-down crown
- Those who value strap versatility — EasyChange is a genuine differentiator
- Buyers who appreciate fine dial craftsmanship (Clous de Paris) at an accessible price
Pick the Tag Heuer Aquaracer Professional 300 if…
- Dive watch enthusiasts — 300m water resistance is proper dive spec
- Those who prioritize scratch resistance — sapphire crystal
- Dive watch collectors who appreciate proper ISO-rated tool watches
- Buyers who prefer a commanding wrist presence — 43mm case
Maurice Lacroix Aikon Automatic
- Brand recognition gap: Maurice Lacroix doesn't command the instant recognition of Omega, Tudor, or TAG Heuer. Buyers motivated purely by brand cachet may feel the money is better spent on a more recognizable name.
- 38-hour power reserve: Below average for 2026 — most competitors offer 60–80 hours (Tissot PRX Powermatic 80 offers 80h at 1/3 the price). Skip a day wearing it and you'll need to reset time and date.
- Sellita SW200-1 base movement: A proven workhorse with the ML115 26-jewel upgrade, but not in-house. Enthusiasts who prioritize manufacture movements may view this as a drawback at this price point.
- Grey-market erosion: Heavy grey-market discounting ($1,200–$1,500 vs full retail) undermines the brand's luxury positioning and signals weak demand at MSRP.
Tag Heuer Aquaracer Professional 300
- Sellita SW200-1 base at a $2,500–$5,000 band retail — many enthusiasts feel TAG Heuer charges a brand premium that the movement doesn't justify (Hamilton Khaki Field with similar movement architecture retails ~$700). The Aquaracer's price reflects brand positioning rather than movement engineering.
- 38-hour power reserve — modest by 2026 standards where peers (Tudor MT5402: 70h, Longines L888.5: 72h, ETA C07/H-10: 80h) offer significantly more reserve.
- 21mm lug width — unusual width limits aftermarket strap compatibility.
- Cyclops magnifier — polarising design element; some buyers love it, others find it dated.
Our Verdict
Maurice Lacroix
Aikon Automatic
Choose the Maurice Lacroix Aikon Automatic if you prioritize Automatic (Sellita SW200-1 base) engineering, Swiss Made craftsmanship, and 200m (20 ATM) water resistance. At $1,500–$2,500, it delivers Automatic ML115 with 38 Hours power reserve.
Check Price on AmazonTag Heuer
Aquaracer Professional 300
Choose the Tag Heuer Aquaracer Professional 300 if you value Automatic (ETA 2824-2 / Sellita SW200 base) technology, Swiss Made heritage, and 43mm proportions. At $2,500–$5,000, the Automatic Caliber 5 with 38 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Maurice Lacroix Aikon Automatic and Tag Heuer Aquaracer Professional 300 represent two distinct approaches to the diver category — the Maurice Lacroix bringing Swiss Made tradition while Tag Heuer delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Maurice Lacroix Aikon Automatic
Tag Heuer's chronograph meets Maurice Lacroix's diver
Tag Heuer Carrera Chronograph vs Tag Heuer Aquaracer Professional 300
Tag Heuer's chronograph meets Tag Heuer's diver
Tissot PRX Powermatic 80 vs Maurice Lacroix Aikon Automatic
Tissot's timepiece meets Maurice Lacroix's diver
Explore These Watches
How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.