# Ulysse Nardin Diver X Skeleton Ops Review by A.I. WatchMetrics

## Watch Summary
The Ulysse Nardin Diver X Skeleton Ops is a striking luxury skeletonized dive watch blending aggressive black ops aesthetics with technical prowess, featuring a tonneau-shaped black DLC titanium case, unidirectional ceramic bezel, and the in-house UN-371 automatic movement with silicon components and 72-hour power reserve via triple barrels, appealing to collectors seeking bold, high-spec tool watches for adventure and statement wear.

## Overall Watch Rating: 8.2/10.0

**Dials & Design Metric (9.7/10.0)** - The blacked-out skeleton dial with signature X-frame and lume accents delivers exceptional visual drama and modernity, surpassing even the intricate dials of Blancpain Fifty Fathoms Bathyscaphe.

**Movement Metric (9.6/10.0)** - The UN-371 in-house caliber with silicon escapement, 42 jewels, and 72-hour reserve via three barrels offers superior engineering and reliability compared to standard luxury movements like the Omega 8900.

**History & Innovation Metric (9.4/10.0)** - Ulysse Nardin's 175-year marine chronometer heritage combined with pioneering skeletonized silicon tech rivals the innovative legacies of brands like Breguet.

**Material Metric (9.3/10.0)** - Black DLC titanium case, ceramic bezel, and double AR sapphire crystal provide lightweight durability and premium finishing on par with top Richard Mille cases.

**Brand Metric (9.0/10.0)** - Ulysse Nardin commands luxury prestige with high craftsmanship and low-volume production, akin to established names like Omega and Zenith.

**Rarity Metric (8.2/10.0)** - Limited to 175 pieces at a $17,000 price elevates exclusivity above unlimited production luxury divers like the Omega Seamaster.

**Versatility Metric (7.9/10.0)** - Strong as a sports dive and casual adventure watch but the flashy skeleton design limits formal versatility compared to steel all-rounders like the Rolex Submariner.

**Functions Metric (7.2/10.0)** - Essential hours, minutes, seconds, date, and 300m dive bezel deliver solid everyday and tool utility matching mid-luxury divers like the Tudor Pelagos.

**Complications Metric (3.5/10.0)** - Minimal complications beyond basic date keep it simple, falling short of feature-rich peers like IWC Aquatimer chronographs.

## Total Performance Score (TPS): 9.4
## TPS Interpretation: Exceptional Value: The watch overdelivers on innovation, materials, and movement quality well beyond its price expectations.
## WM Collector Grade: A+
## Performance Insights: Dominates in design, movement, and history with outstanding value versus its $24,500 implied price, ideal for technical enthusiasts despite modest complications.

## Watch Data
[Picture URL] - https://www.ulysse-nardin.com/wp-content/uploads/2023/07/3713-501-93_1.jpg; [backPicture] - https://www.ulysse-nardin.com/wp-content/uploads/2023/07/3713-501-93_4.jpg; [lumePicture] - https://www.ulysse-nardin.com/wp-content/uploads/2023/07/3713-501-93_2.jpg; [Nickname] - Diver X Skeleton Ops; [Brand] - Ulysse Nardin; [Model] - Diver X Skeleton Ops; [Country] - Switzerland; [Product Link] - https://www.ulysse-nardin.com/watches/diver-x-skeleton-ops-3713-501-93-se; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - UN-371; [# MSRP] - 17000; [# Secondary] - 14500; [# Production] - 175; [watchDescription] - Limited-edition black DLC titanium skeleton diver with ceramic bezel, in-house 72h automatic movement, and aggressive ops styling.; [caseWidth] - 42; [lugToLugLength] - 49.6; [thickness] - 15.25; [lug] - 22; [waterResist] - 300; [powerReserve] - 72; [beatFrequency] - 28800; [lume] - Super-LumiNova X1 Black; [jewels] - 42; [caseMaterial] - titanium DLC; [watchGlass] - sapphire AR; [Bezel] - ceramic unidirectional; [caseback] - sapphire display; [Crown] - screw-down; [Strap] - rubber; [Shape] - tonneau; [Dial] - skeleton; [caseShape] - tonneau; [Seconds] - 1; [Date] - 1; [Calendar] - 0; [Chiming] - 0; [Chronograph] - 0; [Compass] - 0; [dateCompilation] - 0; [DigitalDisplay] - 0; [Dress] - 0; [Field] - 0; [GMT] - 0; [Mechanical Alarm] - 0; [Moonphase] - 0; [Tourbillon] - 0; [worldTimer] - 0; [powerReserveIndicator] - 1; [Diver] - 1; [Pilot] - 0; [racing] - 0; [Skeleton] - 1; [Vintage] - 0; [StyleFormal] - 0; [StyleCasual] - 1; [StyleSports] - 1; [StyleTravel] - 0; [StyleAdventure] - 1; [StyleCollector] - 1; [StyleTool] - 1; [StyleStatement] - 1; [StyleVintage] - 0; [StyleSmart] - 0; [StyleCustom] - 0; [TPS_new] - 9.4; [TPSgrade] - A+; [TPSimpliedPrice] - 24500;

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