# Maurice Lacroix Masterpiece Gravity Review by A.I. WatchMetrics

## Watch Summary
The Maurice Lacroix Masterpiece Gravity is a refined dress watch that masterfully combines classical elegance with technical flair, highlighted by its signature visible escapement mechanism at the dial's base offering a mesmerizing view of the beating heart, powered by the in-house automatic Caliber ML156 with a 52-hour power reserve, targeting sophisticated collectors who appreciate subtle innovation and Swiss haute horlogerie on a more accessible scale.

## Overall Watch Rating: 7.4/10.0

**Dials & Design Metric (9.0/10.0)** - The opaline silver dial with applied indices, blued hands, and dramatic escapement window delivers artistic excellence on par with Patek Philippe's minimalist masterpieces.
**Material Metric (8.8/10.0)** - Stainless steel construction with double-domed sapphire crystal and meticulous brushing rivals the tactile premium of Grand Seiko cases.
**Movement Metric (8.4/10.0)** - The in-house ML156 automatic offers decorated finishing and reliable chronometer-grade performance akin to upgraded Sellita movements in Christopher Ward flagships.
**History & Innovation Metric (8.1/10.0)** - Maurice Lacroix's patented Gravity escapement innovation builds on decades of in-house development, echoing the technical boldness of early A. Lange & S�hne comebacks.
**Brand Metric (7.5/10.0)** - As an entry-level luxury player, it matches the consistent quality and heritage of Oris or Nomos in the mid-premium segment.
**Versatility Metric (7.2/10.0)** - Excels in formal and business settings with its leather strap but limited water resistance curbs broader casual or active use like a Versace DV One.
**Rarity Metric (6.5/10.0)** - A $5,000 MSRP with unlimited production places it squarely in the commonality of Omega Aqua Terras.
**Complications Metric (6.3/10.0)** - The power reserve sector adds thoughtful utility, though it pales against the multi-axis tourbillons in similar-priced independents.
**Functions Metric (4.7/10.0)** - Basic hours, minutes, small seconds, and power reserve suffice for dress duties but lag behind feature-packed Tissot PRXs at half the price.

## Total Performance Score (TPS): 4.0
## TPS Interpretation: Below Average Value: Strong aesthetics and mechanics are undermined by sparse functions for the price point.
## WM Collector Grade: C
## Performance Insights: Exceptional design and material elevate it above average, but weak functions relative to peers suggest better value at around a $2,800 implied price.

## Watch Data
[Picture URL] - https://www.mauricelacroix.com/media/export/cms/products/PT6388-SS001-331-1/PT6388-SS001-331-1_Front_1800x1800.png; [backPicture] - N/A; [lumePicture] - N/A; [Nickname] - Masterpiece Gravity; [Brand] - Maurice Lacroix; [Model] - Masterpiece Gravity; [Country] - Switzerland; [Product Link] - https://www.mauricelacroix.com/us_en/masterpiece/gravity-pt6388-ss001-331-1.html; [reviewLink] - N/A; [Movement Type] - Automatic; [Movement Name] - ML156; [# MSRP] - 4950; [# Secondary] - 3500; [# Production] - Unlimited; [watchDescription] - Refined dress watch featuring visible Gravity escapement and power reserve indicator; [caseWidth] - 40; [lugToLugLength] - 48; [thickness] - 11.75; [lug] - 22; [waterResist] - 50; [powerReserve] - 52; [beatFrequency] - 28800; [lume] - Super-LumiNova; [jewels] - 31; [caseMaterial] - Stainless Steel; [watchGlass] - Sapphire (anti-reflective); [Bezel] - Fixed; [caseback] - Sapphire (exhibition); [Crown] - Screwable; [Strap] - Alligator leather; [Shape] - Round; [Dial] - Opaline silver; [caseShape] - Round; [Seconds] - 1; [Date] - 0; [Calendar] - 0; [Chiming] - 0; [Chronograph] - 0; [Compass] - 0; [dateCompilation] - 0; [DigitalDisplay] - 0; [Dress] - 1; [Field] - 0; [GMT] - 0; [Mechanical Alarm] - 0; [Moonphase] - 0; [Tourbillon] - 0; [worldTimer] - 0; [powerReserveIndicator] - 1; [Diver] - 0; [Pilot] - 0; [racing] - 0; [Skeleton] - 0; [Vintage] - 0; [StyleFormal] - 1; [StyleCasual] - 1; [StyleSports] - 0; [StyleTravel] - 0; [StyleAdventure] - 0; [StyleCollector] - 1; [StyleTool] - 0; [StyleStatement] - 1; [StyleVintage] - 0; [StyleSmart] - 0; [StyleCustom] - 0; [TPS_new] - 4.0; [TPSgrade] - C; [TPSimpliedPrice] - 2800;

**A.I. WatchMetrics Review v37.10 Grok 4 Fast. December 21, 2025.**