# Oan.Gio UltraGrey Review by A.I. WatchMetrics

## Watch Summary
The Oan.Gio UltraGrey is a sleek tool diver blending minimalist sports aesthetics with a cohesive all-grey theme, featuring a meteorite dial, DLC-coated titanium construction, and robust dive capabilities targeted at discerning collectors seeking unique microbrand pieces under $1,200; it runs on a reliable Sellita SW200-1 automatic movement with 38-hour power reserve.

## Overall Watch Rating: 6.0/10.0

**Material Metric (9.4/10.0)** - Outstanding Grade 5 titanium case with DLC coating and AR sapphire crystal rivals pricier titanium divers like the Blancpain Fifty Fathoms Bathyscaphe.
**Dials & Design Metric (8.7/10.0)** - Captivating grey meteorite dial with precise texturing and balanced proportions evokes the artistry of Nomos Glash�tte at a microbrand price.
**Versatility Metric (7.8/10.0)** - Excellent as a daily beater or underwater companion, much like the Tudor Black Bay, though less suited to black-tie events.
**Brand Metric (6.5/10.0)** - Enthusiast-focused microbrand delivers quality akin to early Christopher Ward models with low-production appeal.
**Rarity Metric (6.2/10.0)** - Limited run of 50 pieces elevates it above mass-produced divers at similar pricing.
**Functions Metric (6.2/10.0)** - Solid time and date functionality matches everyday needs like a Tissot Seastar.
**Movement Metric (5.7/10.0)** - Dependable Sellita SW200-1 performs on par with workhorse ETA 2824-2 calibers in mid-tier watches.
**History & Innovation Metric (3.2/10.0)** - Emerging Vietnamese brand shows promise in materials but lacks the established legacy of Seiko Prospex.
**Complications Metric (0.0/10.0)** - No-frills time-only setup falls short of watches with added chronograph or GMT features.

## Total Performance Score (TPS): 4.5
## TPS Interpretation: Fair Value: Premium materials and rarity provide strong bang-for-buck despite simpler movement and complications.

## WM Collector Grade: B
## Performance Insights: Exceptional material execution and design drive value well above the implied price of $750, ideal for microbrand hunters despite modest heritage and functions.

## Watch Data
[Picture URL] - https://oangio.vn/cdn/shop/files/UltraGrey_1.jpg; [backPicture] - https://oangio.vn/cdn/shop/files/UltraGrey_back.jpg; [lumePicture] - https://oangio.vn/cdn/shop/files/UltraGrey_lume.jpg; [Nickname] - UltraGrey; [Brand] - Oan.Gio; [Model] - UltraGrey; [Country] - Vietnam; [Product Link] - https://oangio.vn/products/ultra-grey; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - Sellita SW200-1; [# MSRP] - 1190; [# Secondary] - 1050; [# Production] - 50; [watchDescription] - Lightweight Grade 5 titanium diver with grey DLC coating meteorite dial ceramic bezel and 300m water resistance; [caseWidth] - 39; [lugToLugLength] - 46; [thickness] - 11.2; [lug] - 20; [waterResist] - 300; [powerReserve] - 38; [beatFrequency] - 28800; [lume] - Super-LumiNova C3; [jewels] - 26; [caseMaterial] - Grade 5 Titanium grey DLC; [watchGlass] - Sapphire AR; [Bezel] - Ceramic grey unidirectional dive; [caseback] - Screw-down titanium; [Crown] - Screw-down; [Strap] - Rubber; [Shape] - Round; [Dial] - Grey meteorite; [caseShape] - Round; [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] - 0; [Diver] - 1; [Pilot] - 0; [racing] - 0; [Skeleton] - 0; [Vintage] - 0; [StyleFormal] - 0; [StyleCasual] - 1; [StyleSports] - 1; [StyleTravel] - 0; [StyleAdventure] - 1; [StyleCollector] - 1; [StyleTool] - 1; [StyleStatement] - 1; [StyleVintage] - 0; [StyleSmart] - 0; [StyleCustom] - 1; [TPS_new] - 4.5; [TPSgrade] - B; [TPSimpliedPrice] - 750;

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