Omega Seamaster Diver Black Dial Chronograph Mens Watch 21230445201001 review: 300m dive watch

Quick take: What is Model 212.30.44.52.01.001?

Model 212.30.44.52.01.001 is a reference number used to identify a specific wristwatch configuration. While the listing you’re looking at doesn’t provide full details, the model code typically maps to a particular case size, dial color, and bracelet style. If you’ve landed here during your research, you’re likely comparing sellers, confirming specs, or deciding whether this exact configuration fits your wrist and lifestyle.

Who it’s for: shoppers who want a refined, everyday-capable watch and prefer buying by exact reference number to avoid surprises. Quick verdict: Model 212.30.44.52.01.001 looks like a well-defined, mainstream configuration, but key specs aren’t listed in the source, so verify case size, movement type, water resistance, and warranty before clicking buy.

What’s in the box

Because the original listing doesn’t enumerate contents, here’s what’s typically included with a new watch purchase. If you’re buying pre-owned, contents may vary—ask the seller for photos and a written description.

• Watch, Model 212.30.44.52.01.001
• Bracelet or strap attached (configuration depends on listing; Not specified)
• Presentation box (Not specified)
• User manual/booklet (Not specified)
• Warranty card or certificate (Not specified; confirm whether it’s manufacturer warranty or seller warranty)
• Extra links (if on bracelet; Not specified)
• Hang tag (Not specified)
• Microfiber cloth (Not specified)

If you’re purchasing from a marketplace or gray-market seller, request a contents checklist and unboxing photos to confirm you’re getting everything you expect.

Design & build

With watches, the details matter: case diameter, thickness, lug-to-lug length, material, finishing, and bracelet design collectively determine how a watch wears and how it holds up over time. Because the listing for Model 212.30.44.52.01.001 doesn’t provide these dimensions, use the guidance below to evaluate fit and quality before purchasing.

• Case size and wrist fit: Case diameter determines presence, but lug-to-lug length and curvature affect comfort. If your wrist is under 6.5 inches, aim for restrained lug-to-lug measurements and consider whether the case profile is flat or curved. Ask the seller for wrist shots or exact lug-to-lug.
• Thickness and sleeve comfort: Even a moderate diameter can feel bulky if the case is tall. If you wear shirts with close-fitting cuffs, confirm case thickness and crystal height.
• Weight and balance: A bracelet adds weight but can balance a larger head. If your wrist is sensitive, ask for the watch weight sized to your wrist (with excess links removed).
• Bracelet vs. strap: Bracelets add durability and an all-metal look; straps can reduce weight and improve comfort. If the watch ships on a bracelet, confirm link type (solid vs. hollow), clasp security, and micro-adjust options. If it ships on leather or rubber, ask about lug width to plan future strap changes.
• Materials and finishing: Stainless steel is common at this reference level; other materials may appear in special variants. Without a specification, assume steel unless the seller states otherwise. Look for even brushing, crisp transitions, and a clean bezel. Always request macro photos for pre-owned.
• Legibility and dial layout: Dial color, lume, and hand shape determine readability in various lighting. If you expect low-light use, ask the seller for lume photos. Check that the minute hand reaches the minute track and that any sub-dials (if present) are clearly printed.
• Water resistance: The listing doesn’t state the rating. If you plan to swim or dive, you’ll need the manufacturer-stated water resistance and guidance on crown/pusher operation around water. Never submerge a watch without a stated rating and recent pressure test (for pre-owned).
• Crystal and scratch resistance: Sapphire crystals resist scratches; mineral and acrylic are more prone but have different benefits. Ask for the crystal type and any anti-reflective coatings.

This may sound like a lot, but a five-minute message to the seller asking for dimensions, weight, crystal type, and water resistance will save you from surprises.

Key features and real-world benefits

Everyday timekeeping, simplified

At its core, a watch should be easy to read and set. If Model 212.30.44.52.01.001 features a clear minute track, contrasting hands, and decisive markers, you’ll be able to glance-and-go in bright light or indoors. For travel or work, prioritize legibility over complexity; high-contrast hands and anti-reflective crystal coatings make a real difference when you’re moving between rooms or stepping outside.

Tip: ask the seller for close-up dial photos shot at multiple angles and in indirect daylight to judge reflections and clarity.

Comfortable wear for full-day use

Comfort comes from the interplay of case size, lug design, bracelet articulation, and clasp micro-adjustment. If this model includes a micro-adjust clasp, you can fine-tune fit as your wrist expands throughout the day. Without micro-adjustment, request enough spare links to size perfectly or consider aftermarket clasp options compatible with your bracelet width.

Real-world example: if your wrist swells during summer commutes, a tool-free clasp adjust saves you from mid-day pinching.

Durability for daily life

Scratches and bumps happen. A sturdy steel case and bracelet, a quality crystal, and a secure bezel (if present) all contribute to longevity. If the watch offers proper water resistance (Not specified in the listing), it extends your freedom to wash hands, get caught in rain, or even swim—within manufacturer-rated limits.

Tip: if you plan to wear it often, consider a protective desk mat and avoid placing the watch next to keys or coins to reduce micro-scratches.

Versatility with straps and bracelets

The fastest way to change a watch’s personality is to swap the strap. Confirm the lug width (Not listed) so you can plan leather for dress, rubber for summer, and nylon for casual use. Quick-release spring bars make this even easier; ask the seller whether they’re included.

Benefit: two or three straps effectively give you multiple looks from one purchase—smart if you’re building a minimalist collection.

Potential complications and how they help

The listing doesn’t describe the movement or complications. If your configuration includes features like a date, GMT hand, or chronograph, each serves different users:

• Date: handy for paperwork-heavy workdays.
• GMT/dual time: invaluable for travelers or remote teams across time zones.
• Chronograph: useful for timing workouts, cooking, or commute durations.

If you see sub-dials or extra hands in product photos, ask the seller to confirm exactly which complications are present and how they operate.

Service, warranty, and long-term ownership

A straightforward ownership experience depends on clarity about warranty coverage and service intervals. Because warranty terms aren’t listed, confirm whether you’ll receive a manufacturer-backed warranty or a seller/store warranty, and for how long. Mechanical watches typically benefit from periodic servicing; quartz watches need battery changes and occasional gasket refreshes. Request the service history if buying pre-owned.

Real-world benefit: knowing the service timeline helps you budget and reduces downtime later.

Performance & use: setup, sizing, and care

Even without a detailed spec sheet, you can maximize your experience with Model 212.30.44.52.01.001 by following a practical setup checklist and care routine.

• Verify authenticity and condition:
  • Ask for the serial/reference photos, clear macro shots of dial, caseback, clasp, and movement (if it has a display back).
  • Request a timegrapher reading (for mechanical) or a fresh battery receipt (for quartz).
  • For water resistance, ask for a recent pressure test receipt (especially if the listing suggests swimming use).
• Sizing and initial setup:
  • Bracelet: request the full link count and ask if the seller will size to your wrist measurement (measured tight around the wrist bone, then add 0.2–0.3 inches).
  • Strap: confirm hole spacing and total length; smaller wrists often need “short” straps.
  • Time setting: if the watch has a screw-down crown, always unscrew gently, set the time/date per the manual, then re-seat the crown before exposure to water.
• Daily use tips:
  • Avoid hot tubs/saunas (temperature and pressure fluctuations can affect gaskets).
  • Rinse with fresh water after exposure to salt or chlorinated water (if the model is appropriately water-resistant; Not specified).
  • Use a soft cloth to wipe fingerprints and sweat at the end of the day.
• Storage:
  • Keep in a dry place away from strong magnets.
  • If you rotate watches, store in a lined tray or pouch to prevent desk-diving marks on polished surfaces.
• Maintenance:
  • Mechanical: expect periodic servicing; ask your watchmaker to pressure-test annually if you swim with the watch.
  • Quartz: replace battery when accuracy drops or the seconds hand starts stepping in longer intervals (end-of-life indicator on many movements).
  • Gaskets and seals: replace during service or battery changes if you want to maintain water resistance.

If you’re new to watch ownership, a quick five-minute conversation with a reputable jeweler or watchmaker can set you up for years of worry-free wear.

Where to buy

Omega Seamaster Diver Black Dial Chronograph Mens Watch 21230445201001

View Deal

Pros vs. cons

Who should buy Model 212.30.44.52.01.001

• You prefer shopping by exact reference to avoid surprises in dial, case, or bracelet configuration.
• You want a dependable daily watch and are willing to verify size, weight, and water resistance to ensure it matches your needs.
• You like the idea of one watch that can dress up or down with a strap swap.
• You appreciate long-term ownership and plan to maintain the watch over time (service, gaskets, etc.).

Who should not buy

• You need published, official specifications in the listing and don’t want to contact the seller to confirm details.
• You require guaranteed manufacturer warranty support rather than third-party/seller coverage (status Not specified).
• Your wrist is very small and you’re sensitive to heavier watches; without knowing case size and thickness, you may prefer a model with fully listed dimensions.
• You plan frequent swimming or diving and need declared water resistance and tested seals; those details aren’t provided here.

Specs (from the referenced listing)

Only verifiable or stated fields are shown below. If a detail isn’t listed by the source or seller, it appears as “Not listed.”

If you obtain additional specifications from the seller or manufacturer, match them to the table above for your records. Keeping a saved copy of the listing and any email confirmations helps if you need support later.

How to verify the right fit for your wrist

• Measure your wrist: use a soft tape just behind the wrist bone. Note the measurement in inches and millimeters.
• Ask the seller for:
  • Case diameter (excluding crown)
  • Lug-to-lug length
  • Case thickness
  • Bracelet taper (e.g., 22 mm to 18 mm)
  • Sized weight for your wrist circumference
• Use a paper template: draw a rectangle with the lug-to-lug length and diameter as guides, cut it out, and place it on your wrist to visualize.
• Compare to watches you already own: if you love how a 40 mm x 47 mm watch wears, look for similar proportions.

These steps take minutes and dramatically increase your odds of loving the watch on day one.

Buying checklist for Model 212.30.44.52.01.001

Before you finalize the purchase, copy/paste this and confirm each item:

• Model number matches: Model 212.30.44.52.01.001 (appears on listing, invoice, and any included cards)
• Movement type confirmed (mechanical or quartz) and any complications explained
• Case diameter, thickness, and lug-to-lug provided
• Water resistance rating stated by seller/manufacturer and appropriate for your needs
• Warranty type and length specified in writing
• Return policy and window stated (especially for online purchases)
• Contents verified (box, cards, links, manuals as applicable)
• Condition graded with clear, recent photos (for pre-owned)
• Price aligns with recent market comps (use the Price History section above as a guide)
• Seller provides contact method for after-sales support

If any box can’t be checked, ask for clarification—most reputable sellers respond quickly with the info you need.

Troubleshooting common concerns

• The watch feels too tight/loose after sizing: request additional links or a clasp with micro-adjustment; some bracelets allow half-links for finer tuning.
• Crystal glare makes it hard to read outdoors: ask if an anti-reflective coating is present; if not, a slight angle tilt in bright light often improves readability.
• Time is running fast/slow (mechanical): many movements can be regulated by a watchmaker; keep a log over a few days to confirm the average deviation.
• Date doesn’t change at midnight: set the time forward 12 hours—it may be in AM/PM inversion; avoid changing the date during the movement’s “date danger zone” (consult the manual).
• Water resistance concerns: have a jeweler pressure-test before any water exposure; ensure the crown is properly secured.

Final thoughts and next steps

Model 212.30.44.52.01.001 is a clear, specific reference that helps you shop confidently—provided you verify the key details missing from the listing. For most buyers, the decision comes down to fit, functionality, and after-sales support. Take a moment to confirm case dimensions, movement type, water resistance, and warranty in writing, and you’ll set yourself up for a smooth ownership experience.

If the specs and price meet your expectations, Model 212.30.44.52.01.001 can be a versatile, everyday-friendly choice. If you still have open questions, use the buying checklist above to request the final details before you commit.