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DOXA SUB 300β Sharkhunter Review: Black Ceramic, Gold, and an Unconfirmed Sellita SW200

A specification-led look at the DOXA SUB 300β Sharkhunter: its black ceramic and gold construction, dimensions, date options, water-resistance rating and unconfirmed Sellita SW200 identification.
Estimate3–4 min Catalogued SpecialistWatchRanker Team
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The DOXA SUB 300β Sharkhunter pairs a black matte ceramic case with 18K 3N gold accents, a COSC-certified automatic movement and a maker-rated 300-meter water resistance. But the official product pages reviewed do not identify the movement as a Sellita SW200, so that calibre attribution is unconfirmed. The available evidence supports a specification-led assessment, not claims about wrist comfort, accuracy in use or dive performance.

What is the DOXA SUB 300β Sharkhunter?

It is a black-and-gold variant of DOXA’s SUB 300β dive watch, offered with either a date or a no-date dial. DOXA describes the β as retaining the SUB 300’s design DNA in a slimmer package; that is the manufacturer’s positioning, rather than an independent finding about its appeal or comfort.

The date model is reference 830.20.101.20 on the US product page. The no-date model is reference 830.20.101ND.20. The US listing showed USD 7,850 for the date version when reviewed in 2026; DOXA’s European no-date page displayed EUR 7,450. These are regional listing snapshots, not directly comparable or universal prices. Check the current page for the relevant region, variant, taxes and availability.

What movement is in the SUB 300β Sharkhunter?

DOXA identifies the movement as a Swiss automatic, self-winding, COSC-certified chronometer, decorated by DOXA. The published specifications are a 38-hour power reserve and a frequency of 28,800 vibrations per hour (4 Hz). The official pages reviewed do not name a calibre or manufacturer.

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#1 Best Overall
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San Martin Men Watch SN0017G-F, 40 mm 20 Bar Diver Watch ST2130 Automatic Mechanical Luxury Diving Waterproof Wrist Watch
  • ST2130 Automatic Movement: This men's dive watch is equipped with the ST2130 self-winding mechanical movement—a premium 28,800 vph (4Hz) caliber built on the classic ETA 2824-2 design. Engineered for everyday durability, it features shock resistance and a hacking function for precise second-by-second time setting. The movement also supports bidirectional automatic winding, is constructed with 26 jewels, and delivers a power reserve of up to 42 hours
  • Fine Workmanship: Our automatic watch case combines marine-grade 316L stainless steel (superior to standard 304 steel) with a domed sapphire crystal bubble glass and cyclops date window (2.5 times amplification effect), featuring inner AR blue coating – creating an indestructible timepiece that maintains crystal clarity in any environment. Designed for professional divers and watch enthusiasts who refuse to compromise
  • 20Bar Water Resistant: Our SN0017G-F professional mechanical dive watch delivers true 20Bar/200-meter water resistance, built to meet ISO 6425 dive watch standards. The screw-down crown is a riple-sealed system that prevents water intrusion. And with the double gasket system - Reinforced at crown, case back, and crystal. Suitable for professional marine activities, swimming, water sports, and daily wearing
  • BGW9 Blue Light: Its hands and hour markers feature Super Luminous BGW9 blue light, which can last for at least 5 hours in the dark and can absorb and store light energy in a bright environment quickly. Luminous wristwatches allow you to grasp the time without fear of the dark
  • Ideal Present for Men: Its precise timekeeping and impressive features, make it a popular choice among professional divers and outdoor enthusiasts. Whether you're exploring the depths of the ocean or simply going about your day-to-day activities, this watch will never let you down, It is a perfect present for your father, husband, or boyfriend

That means the Sellita SW200 identification in the title is not confirmed by the cited manufacturer information. Matching a movement’s stated reserve and frequency to a familiar calibre family would not establish what is inside this specific watch. For now, the accurate description is the movement specification DOXA publishes, without assigning it an SW200 calibre number.

How big does the SUB 300β wear?

DOXA lists a 42.5 mm case diameter, 44.50 mm lug-to-lug length, 11.95 mm thickness and 20 mm lug width. These are manufacturer dimensions, not an assessment of how the watch fits a particular wrist.

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watchdives Automatic Watch for Men - WD5512B ST2130 Sub Diver Watch 40mm Sapphire Crystal Wristwatch 200m Waterproof Watches Unidirectional Ceramic Bezel Super Luminous Black
  • Refined Design & Upgraded Movement: Compared to the WD5512 V2 PT, the WD5512B features a reduced inner rehaut slope for a cleaner, flatter dial appearance. Powered by the reliable ST2130 high-beat automatic movement (28,800 bph) for smoother sweeping and better accuracy.
  • Premium Materials: Crafted from solid 316L stainless steel with a sunburst blue or enamel black dial. Features a sapphire crystal with AR coating and a 2.5x date window convex magnifier for easy date reading.
  • Pro-Grade Bezel & Luminous: Unidirectional 120-click chronograph bezel with a scratch-resistant ceramic top ring and a luminous marker at 12 o’clock. Filled with BGW-9 blue light luminous on hands and markers for superior low-light visibility.
  • Built For Water - Solid Diver Construction: Compact 40mm case (48mm lug-to-lug) with an ultra-slim 11.8mm profile. Both crown and case back are screw-down design, delivering reliable water resistance for swimming, snorkeling, and everyday wet conditions.
  • New Upgraded Clasp: Comes with our latest dual push-button clasp featuring 5 micro-adjustment holes, offering better comfort, precise fit, and enhanced security—easily adjust without tools.

For comparison, DOXA lists the SUB 300T at 13.65 mm thick, making the β 1.70 mm slimmer on the published figures. The brand also says the β’s bezel sits 0.5 mm lower. Those details establish a difference in profile, but do not by themselves prove that the β will feel more comfortable or wear smaller.

What are the case and dial materials?

The case is black matte ceramic with a titanium chamber and screw-down titanium caseback. The screw-down crown and unidirectional rotating bezel are made of 18K 3N gold; the bezel has a ceramic insert. DOXA specifies a matte, grained black dial with black-on-black markings.

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Rank #3
ADDIESDIVE Men's Dive Watch 8215 Mechanical Movement 200 M Ceramic Rotating Bezel Sapphire BGW9 Super Lume Sophisticated Black Automatic Dress Watches for Men
  • Premium Material:Equipped with a precise Japanese 8215 movement, this dive watch guarantees accuracy.Sapphire crystal outperforms mineral glass with its superior hardness, scratch resistance, and clarity
  • Unique Design:The AD2085 men's automatic watch features large, easy-to-read numbers, a rotating ceramic bezel that's easy to grip and turn, combining practicality with stylish design
  • Versatile Function:Water-resistant to 200 M,this waterproof watch is ideal for diving.The luminous feature aids night-time readability,Clearly visible underwater,enhancing its outdoor functionality
  • Size:Case diameter:42.6mm;Bezel diameter:40.5mm;Case length:48mm;Case thickness:13.5mm;Lug size:20mm;Watch weight:173g;
  • Exquisite Presents for Gentlemen:This wristwatch, a masterpiece of classic design and superb quality, serves as a heartfelt present for fathers, husbands, sons, brothers, boyfriends, friends, and beyond. It's ideal for marking life's precious moments, significant milestones, or just as a simple token of appreciation

The result, on paper, is a deliberately low-contrast black dial framed by gold accents. The specifications describe the colors and materials; they do not establish real-world legibility, scratch resistance or how the finish changes with use.

Is the Sharkhunter actually 300 meters water resistant?

DOXA rates it at 30 ATM, or 300 meters (984 feet). That is the manufacturer’s water-resistance rating, not a guarantee that the watch is appropriate for every dive or condition. The same specifications list a screw-down crown and a unidirectional timing bezel. The crystal is sapphire.

Rank #4
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San Martin Men Watch SN0017G-F, 40 mm 20 Bar Diver Watch ST2130 Automatic Mechanical Luxury Diving Waterproof Wrist Watch
  • ST2130 Automatic Movement: This men's dive watch is equipped with the ST2130 self-winding mechanical movement—a premium 28,800 vph (4Hz) caliber built on the classic ETA 2824-2 design. Engineered for everyday durability, it features shock resistance and a hacking function for precise second-by-second time setting. The movement also supports bidirectional automatic winding, is constructed with 26 jewels, and delivers a power reserve of up to 42 hours
  • Fine Workmanship: Our automatic watch case combines marine-grade 316L stainless steel (superior to standard 304 steel) with a domed sapphire crystal bubble glass and cyclops date window (2.5 times amplification effect), featuring inner AR blue coating – creating an indestructible timepiece that maintains crystal clarity in any environment. Designed for professional divers and watch enthusiasts who refuse to compromise
  • 20Bar Water Resistant: Our SN0017G-F professional mechanical dive watch delivers true 20Bar/200-meter water resistance, built to meet ISO 6425 dive watch standards. The screw-down crown is a riple-sealed system that prevents water intrusion. And with the double gasket system - Reinforced at crown, case back, and crystal. Suitable for professional marine activities, swimming, water sports, and daily wearing
  • BGW9 Blue Light: Its hands and hour markers feature Super Luminous BGW9 blue light, which can last for at least 5 hours in the dark and can absorb and store light energy in a bright environment quickly. Luminous wristwatches allow you to grasp the time without fear of the dark
  • Ideal Present for Men: Its precise timekeeping and impressive features, make it a popular choice among professional divers and outdoor enthusiasts. Whether you're exploring the depths of the ocean or simply going about your day-to-day activities, this watch will never let you down, It is a perfect present for your father, husband, or boyfriend

What strap does it come with?

DOXA lists a black FKM rubber strap with a black PVD-coated folding clasp and ratcheting wetsuit extension. The lugs are 20 mm wide, and DOXA offers strap and clasp purchases separately. Confirm compatibility with the exact reference before choosing an aftermarket strap; the lug width alone does not verify fit or clasp compatibility.

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SUB 300β vs. SUB 300T: what can be compared?

Specification SUB 300β Sharkhunter SUB 300T
Thickness 11.95 mm, per DOXA 13.65 mm, per DOXA
Bezel height DOXA says it sits 0.5 mm lower than the SUB 300T Reference point for DOXA’s 0.5 mm comparison

The comparison is limited to the dimensions and design details DOXA states. It does not establish differences in movement, materials, price, date configuration, strap options, comfort or performance for a particular SUB 300T reference.

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Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Best Value
Sale
watchdives Automatic Watch for Men - WD5512B ST2130 Sub Diver Watch 40mm Sapphire Crystal Wristwatch 200m Waterproof Watches Unidirectional Ceramic Bezel Super Luminous Black Dial Green Bezel
  • Refined Design & Upgraded Movement: Compared to the WD5512 V2 PT, the WD5512B features a reduced inner rehaut slope for a cleaner, flatter dial appearance. Powered by the reliable ST2130 high-beat automatic movement (28,800 bph) for smoother sweeping and better accuracy.
  • Premium Materials: Crafted from solid 316L stainless steel with a sunburst blue or enamel black dial. Features a sapphire crystal with AR coating and a 2.5x date window convex magnifier for easy date reading.
  • Pro-Grade Bezel & Luminous: Unidirectional 120-click chronograph bezel with a scratch-resistant ceramic top ring and a luminous marker at 12 o’clock. Filled with BGW-9 blue light luminous on hands and markers for superior low-light visibility.
  • Built For Water - Solid Diver Construction: Compact 40mm case (48mm lug-to-lug) with an ultra-slim 11.8mm profile. Both crown and case back are screw-down design, delivering reliable water resistance for swimming, snorkeling, and everyday wet conditions.
  • New Upgraded Clasp: Comes with our latest dual push-button clasp featuring 5 micro-adjustment holes, offering better comfort, precise fit, and enhanced security—easily adjust without tools.

Is the DOXA SUB 300β Sharkhunter worth it?

The case for it rests on a distinctive material mix—black matte ceramic, titanium and 18K 3N gold—along with a 300-meter maker rating and a COSC-certified automatic movement with a 38-hour reserve. Its published 11.95 mm thickness is also lower than DOXA’s stated SUB 300T figure.

The important caveat is that this specification-led picture cannot answer how the watch feels on the wrist, how its black-on-black dial reads in different light, or how it performs in actual use. The calibre is also not named on the official pages reviewed. Consider the Sharkhunter if its materials, proportions and published specifications suit your needs, and assess the fit and dial in person if those qualities will decide the purchase.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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