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A.I. Reviews v37.5 (refreshed with Grok 4.1 Fast)
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Model Name:
Aquastar Benthos 500 LE-300
Watch added to favourite list
Reference:
Benthos 500
Price ($)
$
3800
Country:
Switzerland
A.I. Rating
6.4
Crowd Rating:
1824
Watch Description
Aquastar unveils its most prestigious dive watch to date, built around a newly developed center-mounted 60-minute chronograph calibre exclusive to Aquastar
For over fifty years, the Aquastar Benthos chronograph has remained the paragon of capability and dive watch collectability — a rarity in watchmaking both for its unique design and functionality, and its actual rarity as surviving examples remain scarce and highly collectable. However, since the brand’s triumphant re-launch in 2020, the modern Aquastar catalog has been without this revered, and sought-after vintage icon, but it’s not without good reason: there have been no modern center-mounted chronograph movements commercially available for watchmakers to utilize. So in collaboration with La Joux-Perret, Aquastar rebuilt this key functionality, exclusively for its debut in the Benthos 500 Founder’s Edition.
“Like many of the innovations pioneered by Aquastar founder Frederic Robert, the Benthos chronograph from 1970 was light years ahead of its time,” says Rick Marei, Aquastar’s current helmsman. “Its utility was unique in that it was built around a central-mounted chronograph which could present dive time information in a clear and highly legible way. Sadly, the most commonly used modern automatic chronograph movements have not kept up with the ability to present information in such a way, which is why we are so proud to work with our partners at La Joux-Perret to not only revive the Benthos 500, but preserve its unique and incredible chronograph functionality with a new movement that is exclusive to Aquastar,” he continues.
BENTHOS 500 CHRONOGRAPH ENHANCED ERGONOMICS
UNMISTAKABLY A BENTHOS 500
The chronograph pusher has been relocated to 2:00 — a more natural position for easy actuation (start/stop/reset) by the index finger when the watch is worn over the left wrist, even with neoprene diving gloves on. Of course, true to Aquastar’s form and function, this pusher may be activated even underwater — a signature utility of Aquastar’s modern dive chronographs
Product Link:



42
47

22
15.4

200
Steel - 316L
Cushion
Sapphire
Screw-in
Automatic
Aquastar Calibre 1MPS
60
Black
A.I. Watch Review:
# Aquastar Benthos 500 LE-300 Review by A.I. WatchMetrics
## Watch Summary
The Aquastar Benthos 500 LE-300 is a robust limited-edition dive watch blending vintage-inspired design with modern tool-watch prowess, featuring a 42mm 316L stainless steel case, unidirectional sapphire bezel, domed sapphire crystal with AR coating, exceptional Super-LumiNova on indices and sword hands over a clean black dial, and 500m water resistance with a helium escape valve, powered by the Sellita SW200-1 automatic movement with 38-hour power reserve, targeting serious divers, adventure enthusiasts, and collectors drawn to revived Swiss heritage brands.
## Overall Watch Rating: 6.4/10.0
**Material Metric (9.0/10.0)** - Premium 316L stainless steel construction with brushed/polished finishing, AR-coated sapphire crystal, and sapphire bezel insert delivers top-tier durability akin to higher-end Omega Seamaster divers.
**Dials & Design Metric (8.5/10.0)** - The highly legible black dial with applied indices, lumed sword hands, and classic dive styling evokes the original Aquastar legacy while maintaining contemporary appeal, on par with Sinn or Zodiac Sea Wolf models.
**Versatility Metric (7.5/10.0)** - Excels in aquatic and casual adventures with rubber strap compatibility, but transitions reasonably to everyday sports wear though less ideal for formal occasions.
**History & Innovation Metric (7.0/10.0)** - Rooted in Aquastar's 1960s saturation diver heritage used by COMEX professionals, this revival applies proven dive engineering without groundbreaking new tech.
**Functions Metric (6.8/10.0)** - Provides core timekeeping, precise dive bezel timing, superior lume, and extreme water resistance suited for professional use, matching entry-level luxury divers like the Tudor Black Bay.
**Brand Metric (6.5/10.0)** - Revived Swiss microbrand with strong enthusiast following and limited output positions it firmly in the high-premium segment, comparable to Christopher Ward or Squale.
**Rarity Metric (6.4/10.0)** - Capped at 300 numbered pieces at this price point, it offers solid exclusivity similar to other microbrand limited divers on Chrono24.
**Movement Metric (5.7/10.0)** - The workhorse Sellita SW200-1 automatic is dependable for daily wear but lacks advanced regulation or decoration found in Grand Seiko or ETA-powered peers.
**Complications Metric (0.0/10.0)** - Stripped-down time-only configuration prioritizes simplicity and reliability over added features like date or GMT.
## Total Performance Score (TPS): 4.0
## WM Collector Grade: C
## Performance Insights: Excels in materials, design, and dive-ready functions but undermined by basic movement and zero complications, delivering modest value versus an implied price of $600.
## TPS Interpretation: Below Average Value: The watch punches above basic tool standards in build quality but its specs lag expectations for the asking price.
## Watch Data
[https://aquastarwatches.com/cdn/shop/files/Benthos500LE300_1_1024x1024@2x.jpg?v=1689923456] - front; [https://aquastarwatches.com/cdn/shop/files/Benthos500LE300-back.jpg?v=1689923456] - back; [https://aquastarwatches.com/cdn/shop/files/Benthos500LE300-lume.jpg?v=1689923456] - lume; [Benthos 500 LE-300] - Benthos 500 LE-300; [Aquastar] - Aquastar; [Benthos 500 LE-300] - Benthos 500 LE-300; [Switzerland] - Switzerland; [https://aquastarwatches.com/products/benthos-500-limited-edition-300] - https://aquastarwatches.com/products/benthos-500-limited-edition-300; [-] - -; [Automatic] - Automatic; [Sellita SW200-1] - Sellita SW200-1; [0] - 0; [Limited to 300 pieces professional dive watch reviving Aquastar heritage with 500m WR and helium escape valve] - Limited to 300 pieces professional dive watch reviving Aquastar heritage with 500m WR and helium escape valve; [42] - 42; [50] - 50; [13.9] - 13.9; [22] - 22; [500] - 500; [38] - 38; [28800] - 28800; [Super-LumiNova] - Super-LumiNova; [26] - 26; [316L stainless steel] - 316L stainless steel; [sapphire with AR] - sapphire with AR; [unidirectional rotating sapphire] - unidirectional rotating sapphire; [screw-down with helium escape valve] - screw-down with helium escape valve; [screw-down] - screw-down; [FKM rubber] - FKM rubber; [round] - round; [black] - black; [yes] - yes; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [no] - no; [yes] - yes; [no] - no; [no] - no; [no] - no; [no] - no; [yes] - yes; [yes] - yes; [yes] - yes; [no] - no; [yes] - yes; [yes] - yes; [no] - no; [yes] - yes; [no] - no; [no] - no; [no] - no; [4.0] - 4.0; [C] - C; [$600] - $600;
**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**


