# Baume & Mercier Riviera Azur 300m Review by A.I. WatchMetrics


## Watch Summary
The Baume & Mercier Riviera Azur 300m is a luxury sports diver blending the iconic 1970s Riviera cushion case design with modern dive specs, featuring a captivating azure blue sunray dial, unidirectional ceramic bezel, and full Super-LumiNova lume, targeted at collectors desiring versatile elegance for daily wear and underwater adventures, powered by the in-house Baumatic automatic movement offering a standout 120-hour power reserve.

## Overall Watch Rating: 7.5/10.0


**Material Metric (9.2/10.0)** - Premium stainless steel construction with sapphire AR crystal and ceramic bezel surpasses typical entry-luxury divers like the Tag Heuer Aquaracer.
**Dials & Design Metric (8.7/10.0)** - The distinctive hexagon bezel accents and textured azure dial deliver refined sporty aesthetics on par with Omega Seamaster evolutions.
**Movement Metric (8.4/10.0)** - The Baumatic BM13-1975A offers exceptional 120-hour reserve and chronometer-grade performance, rivaling higher-end automatics like the ETA 2824 upgrades.
**Versatility Metric (8.0/10.0)** - Cushion case and rubber strap transition seamlessly from office casual to diving, akin to the versatile Tudor Black Bay.
**Brand Metric (7.5/10.0)** - Baume & Mercier provides credible entry-level luxury heritage comparable to Oris or Longines.
**History & Innovation Metric (7.5/10.0)** - Riviera's 1970s legacy combined with Baumatic innovations like extended power reserve matches established lines like the IWC Ingenieur.
**Functions Metric (7.3/10.0)** - Solid timekeeping, date, and 300m dive readiness align with mid-tier divers such as the Hamilton Khaki Navy.
**Rarity Metric (6.5/10.0)** - At its price point, it offers standard production accessibility similar to most entry-luxury sport watches.
**Complications Metric (4.0/10.0)** - Basic date function falls in line with simple three-hand divers like the Seiko Prospex.

## Total Performance Score (TPS): 9.9
## TPS Interpretation: Outstanding Value: This watch overdelivers with premium materials, long-power-reserve movement, and versatile design well beyond expectations for its price.
## WM Collector Grade: A+
## Performance Insights: Strengths in material quality, movement reliability, and design punch elevate it above average, providing exceptional value versus an implied price around $2,500.

## Watch Data
[Picture URL] - https://www.baume-et-mercier.com/dw/image/v2/BFMS_PRD/on/demandware.static/-/Sites-masterCatalog_Riviera/default/dw0b0b0b0a/images/hi-res/M0A10737/M0A10737_RIVIERA_AZUR_1.jpg; [backPicture] - https://www.baume-et-mercier.com/dw/image/v2/BFMS_PRD/on/demandware.static/-/Sites-masterCatalog_Riviera/default/dw0b0b0b0a/images/hi-res/M0A10737/M0A10737_RIVIERA_AZUR_back.jpg; [lumePicture] - https://www.baume-et-mercier.com/dw/image/v2/BFMS_PRD/on/demandware.static/-/Sites-masterCatalog_Riviera/default/dw0b0b0b0a/images/hi-res/M0A10737/M0A10737_RIVIERA_AZUR_lume.jpg; [Nickname] - Riviera Azur Diver; [Brand] - Baume & Mercier; [Model] - Riviera Azur 300m; [Country] - Switzerland; [Product Link] - https://www.baume-et-mercier.com/us/en/collections/riviera/m0a10737-riviera-automatic-42-azur-blue.html; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - Baumatic BM13-1975A; [# MSRP] - 4950; [# Secondary] - 3500; [# Production] - Unlimited; [watchDescription] - Rectangular cushion stainless steel sports diver with azure blue textured dial, unidirectional blue ceramic bezel, date at 3, rubber strap, and 300m water resistance; [caseWidth] - 42; [lugToLugLength] - 49.6; [thickness] - 12.65; [lug] - 22; [waterResist] - 300; [powerReserve] - 120; [beatFrequency] - 28800; [lume] - Super-LumiNova; [jewels] - 27; [caseMaterial] - Stainless Steel; [watchGlass] - Sapphire anti-reflective; [Bezel] - Unidirectional rotating ceramic blue; [caseback] - Solid screw-down; [Crown] - Screw-down; [Strap] - Blue rubber; [Shape] - Cushion; [Dial] - Azure blue sunray textured; [caseShape] - Rectangular cushion; [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] - 0; [TPS_new] - 9.9; [TPSgrade] - A+; [TPSimpliedPrice] - 2500;

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