# Ulysse Nardin Blast Tourbillon Blue & Gold Review by A.I. WatchMetrics

## Watch Summary
This avant-garde luxury tonneau-shaped tourbillon watch blends grade 5 titanium with extensive sapphire crystal elements in a striking blue sunray dial accented by 18K gold applied indices and hands, targeting discerning high-end collectors who appreciate technical innovation and bold design statements, powered by the in-house manual-winding Caliber UN-172 offering a 60-hour power reserve and flying tourbillon at 6 o'clock with small seconds.

## Overall Watch Rating: 8.1/10.0

**Brand Metric (8.7/10.0)** - Ulysse Nardin holds strong luxury prestige with over 175 years of Swiss heritage and high craftsmanship, benchmarked against peers like Omega and Zenith.

**History & Innovation Metric (8.8/10.0)** - Renowned for marine chronometer legacy and pioneering silicon components, it stands tall like established innovators such as Blancpain.

**Rarity Metric (9.9/10.0)** - Its near-$80,000 price delivers top-tier exclusivity through cost alone, similar to many unlimited-production luxury flagships.

**Material Metric (9.9/10.0)** - Exceptional titanium-sapphire hybrid construction with premium finishing and AR-coated crystals rivals haute horlogerie like Richard Mille cases.

**Movement Metric (9.8/10.0)** - The in-house UN-172 manual tourbillon excels in complexity, high-beat performance, and finishing, comparable to elite Patek Philippe calibers.

**Complications Metric (9.2/10.0)** - The prominent flying tourbillon adds sophisticated mechanical artistry on par with Vacheron Constantin Traditionnelle models.

**Functions Metric (3.5/10.0)** - Basic hours, minutes, and small seconds fall short of fuller luxury offerings like those with added date or GMT functions.

**Dials & Design Metric (9.7/10.0)** - The captivating blue sunray dial, gold accents, and tonneau architecture with 3D elements surpass typical luxury aesthetics like Audemars Piguet Royal Oak.

**Versatility Metric (3.8/10.0)** - Suited mainly for formal or collector occasions with 30m water resistance, it trails more wearable all-rounders like Rolex Datejust.

## Total Performance Score (TPS): 4.0
## TPS Interpretation: Below Expected Value: Exceptional complications and materials are offset by limited functions and versatility at this price point.

## WM Collector Grade: C
## Performance Insights: Shines in movement, materials, complications, and design for collector appeal, but basic functions and low versatility create poor value versus an implied fair price around $25,000.

## Watch Data
[Picture URL] - https://media.ulysse-nardin.com/dw/image/v2/BGSS_PRD/on/demandware.static/-/Sites-UN-master-catalog/default/dw4f4e4d4e/1713-500/93_1.jpg; [backPicture] - https://media.ulysse-nardin.com/dw/image/v2/BGSS_PRD/on/demandware.static/-/Sites-UN-master-catalog/default/dw4f4e4d4e/1713-500/93_2.jpg; [lumePicture] - ; [Nickname] - Blast Tourbillon Blue & Gold; [Brand] - Ulysse Nardin; [Model] - Blast Tourbillon Blue & Gold; [Country] - Switzerland; [Product Link] - https://www.ulysse-nardin.com/en/watch-collection/blast/1713-500-93.html; [reviewLink] - ; [Movement Type] - Manual; [Movement Name] - UN-172; [# MSRP] - 79900; [# Secondary] - 65000; [# Production] - Unlimited; [watchDescription] - Avant-garde tonneau-shaped luxury tourbillon with blue sunray dial, 18K gold accents, flying tourbillon at 6 o'clock, titanium and sapphire construction.; [caseWidth] - 42; [lugToLugLength] - 49; [thickness] - 15.8; [lug] - 22; [waterResist] - 30; [powerReserve] - 60; [beatFrequency] - 28800; [lume] - None; [jewels] - 21; [caseMaterial] - Grade 5 Titanium with Sapphire Crystal Bezel and Caseback; [watchGlass] - Sapphire with AR; [Bezel] - Fixed Sapphire Crystal; [caseback] - Sapphire Crystal; [Crown] - Screw-down Titanium; [Strap] - Blue Alligator Leather with Titanium Folding Clasp; [Shape] - Tonneau; [Dial] - Blue Sunray with Gold Indices; [caseShape] - Tonneau; [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] - 1; [worldTimer] - 0; [powerReserveIndicator] - 0; [Diver] - 0; [Pilot] - 0; [racing] - 0; [Skeleton] - 0; [Vintage] - 0; [StyleFormal] - 1; [StyleCasual] - 0; [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] - 25000;

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