Omega Men’s 232.32.46.51.01.005 Seamaster Planet Ocean Black Dial Watch review: diving watch

This is a large, purpose-built automatic dive watch with a 45.5 mm case, a black dial for high contrast, a scratch-resistant sapphire crystal, and a serious 600 m (2,000 ft) water‑resistance rating. It’s designed for people who want a robust everyday tool watch that can handle real underwater use yet still look sharp with casual or office wear.

If you prefer a set‑and‑forget experience with no battery to change, favor legibility, and value durability over dainty dress-watch proportions, this model belongs on your shortlist. Quick verdict: a capable, no‑nonsense automatic dive watch that prioritizes function, toughness, and clarity in a modern, large format.

It’s especially compelling if you’re after a black dial watch that can transition from weekend to work and won’t flinch at saltwater, pool time, or rough-and-tumble daily life.

What’s in the Box

• Watch head: Not specified
• Bracelet/strap: Not specified
• Extra straps: Not specified
• Buckle/clasp type: Not specified
• Warranty card/papers: Not specified
• User manual: Not specified
• Travel pouch/watch box: Not specified
• Additional tools (spring bar tool, links, etc.): Not specified

Design & Build

The overall design leans heavily into utility. The 45.5 mm case wears large and assertive, which typically boosts dial opening and legibility at a glance. While the exact case material isn’t listed, the presence of a sapphire crystal tells you the watch is built with scratch resistance in mind where it matters most: over the dial. Sapphire is substantially harder than ordinary mineral glass and resists scuffs from keys, door frames, and grit that easily blemish lesser crystals.

The black dial keeps things visually clean and highly legible, a key feature for dive‑style watches where contrast counts. At 45.5 mm, wrist presence is undeniable—great if you like a bold look or need a big display you can read instantly. If your wrist is under about 6.5 inches, plan on the watch wearing quite tall from lug to lug; consider strap choices that help balance the footprint (more on that below).

Weight, thickness, lug‑to‑lug length, and strap/bracelet details aren’t specified in the listing, so we can’t comment on exact ergonomics or under‑cuff behavior. In practice, large dive watches often wear best on supple rubber or canvas for active use and on bracelets for daily wear; the right strap can make a significant difference in comfort and perceived size.

Key Features

Automatic Self‑Winding Movement

Why it matters:

• No battery changes. The watch winds itself via the motion of your wrist.
• Leave it off for a couple of days and it may stop; a few turns of the crown or a quick shake gets it going again.
• Mechanical movements have a distinct, tactile charm—with a sweeping seconds hand and an engineering story that many watch enthusiasts love.

Real‑life benefits:

• If you rotate a few watches, this is a grab‑and‑go piece: pick it up, give it a wind, set the time, and you’re on your way.
• For frequent travelers or busy professionals, the simplicity of not needing battery service is convenient.

Notes:

• Accuracy range and power reserve are not specified. Most automatic movements vary; if precision timing is critical for you, plan to check and set the time every so often.

600 m (2,000 ft) Water Resistance

Why it matters:

• According to the manufacturer/listing, this watch is water‑resistant to 600 meters (2,000 feet). That’s far beyond the needs of casual swimmers or recreational divers, and puts the watch in professional‑grade territory.
• A high rating provides peace of mind in daily life—washing hands, showering, pool days, beach trips, rainstorms, and more.

Real‑life benefits:

• If you dive or do water sports, you can wear it without worry. Even if you never go deeper than the shallow end, a robust rating means the seals are designed to stand up to pressure and regular use around water.
• Frequent travelers moving between climates, saunas, or hot tubs get the confidence that the watch won’t fog or leak as easily as lightly rated models.

Usage tip:

• Ensure the crown is fully secured before water exposure. Rinse the watch in fresh water after swimming in the ocean or chlorinated pools to help preserve gaskets and finishes.

Sapphire Crystal for Scratch Resistance

Why it matters:

• The listing notes a durable sapphire crystal over the dial. Sapphire is highly scratch‑resistant, preserving clarity and legibility for years.
• Scratched crystals are distracting and expensive to replace. Sapphire reduces that risk.

Real‑life benefits:

• Office, travel, outdoor adventures—bumping into door frames or brushing your wrist on rough surfaces is less of a concern.
• If you’re hard on your gear, you’ll appreciate how the crystal stays clear and clean‑looking even after daily wear.

Care tip:

• While sapphire resists scratches, it can still chip or shatter under sharp impact. Treat it with reasonable care, especially around hard ceramic tile or granite countertops.

45.5 mm Case for Bold Legibility

Why it matters:

• The larger diameter typically means a bigger dial opening and larger hands/markers, making it faster to read at a glance.
• Bigger cases have presence; if you like your watch to feel like a substantial piece of kit, this size delivers.

Real‑life benefits:

• During workouts, commutes, or busy workdays, you get a quick, confident read with minimal squinting.
• If you have a large wrist, the scale can look proportional and balanced compared to smaller watches that can appear undersized.

Fit tip:

• For smaller wrists, consider a curved rubber strap or a fabric strap that lets the watch sit lower and hug the wrist more comfortably. Strap choice can be the difference between too big and just right.

Black Dial, High Contrast Aesthetic

Why it matters:

• A dark dial reduces reflections and emphasizes the contrast from hands and markers, improving readability.
• Black dials pair well with almost anything—T‑shirts to button‑downs—and feel timeless.

Real‑life benefits:

• Whether you’re at the office, out for dinner, or heading to the beach, a black dial keeps the look clean and versatile.
• It disguises minor smudges better than light dials, helpful for daily wear.

Styling tip:

• Swap to a matched black rubber strap for sport days and a brushed bracelet or leather (if not going near water) for casual Fridays or a night out.

Performance & Use

Daily wear:

• The movement automatically winds with your wrist motion. If you desk‑dive more than you actually move, a few turns of the crown in the morning ensures a healthy wind to carry you through the day.
• With its substantial size, the watch reads clearly in almost any lighting. If low‑light lume is present, it’s not specified; assume standard legibility and adjust expectations accordingly.

Swimming and diving:

• Per the listing’s 600 m (2,000 ft) rating, the watch is designed to withstand significant water pressure. Always confirm the crown is fully secured before contact with water.
• After saltwater or chlorinated pools, rinse the watch in fresh water and dry it gently to help protect seals and preserve the finish.

Comfort and fit:

• Large cases sit differently depending on your wrist shape. Flat wrists may find broader watches overhang at the lugs; curved or oval wrists often accommodate them better.
• If the bracelet or strap is not specified, you might plan to pair the watch with a high‑quality rubber strap for summer and activities. Rubber dampens perceived weight and improves grip when wet.

Setting and winding:

• If the watch stops after sitting still, give it 20–30 gentle crown turns to start, then set the time. The exact number of turns isn’t specified; the goal is to get the movement running smoothly.
• Avoid setting the date (if any) during the movement’s “danger zone” (typically around 8 p.m.–4 a.m.)—but since a date function isn’t listed, this may not apply.

Care and maintenance:

• Service intervals are not specified. As a general practice for mechanical watches, periodic servicing helps maintain performance; consult the seller or manufacturer for guidance specific to this model.
• Keep the watch away from strong magnets (speakers, some laptop lids, clasped phone cases) to minimize the chance of magnetization, which can affect timekeeping.

Durability expectations:

• The sapphire crystal provides excellent scratch resistance on the dial side. The case finish and bezel material are not listed, so treat them with normal care to prevent scuffs.
• The high water‑resistance rating is a strong indicator of robust seals; however, gasket life depends on use and environment. If you use the watch in water frequently, consider periodic water‑resistance testing by a professional.

Where to buy

Omega Men's 232.32.46.51.01.005 Seamaster Planet Ocean Black Dial Watch

$6,990.00

View Deal

Pros vs. Cons

Who Should Buy This Watch

• You want an automatic dive watch that can handle real‑world water exposure with a high safety margin.
• You prefer a bold, modern presence on the wrist and value quick, at‑a‑glance legibility.
• You appreciate the low‑maintenance appeal of self‑winding mechanics and a scratch‑resistant crystal.
• You plan to wear one watch for everything—work, weekends, travel—and want robustness over dressy minimalism.

Who Shouldn’t Buy This Watch

• Your wrist is small and you find anything over ~41 mm uncomfortable or visually overpowering.
• You need detailed specs—movement caliber, power reserve, thickness, weight, lume performance—to make a decision; the listing doesn’t provide them.
• You mostly wear slim dress shirts and want under‑cuff stealth; without thickness data, this large case is a gamble under tight cuffs.
• You prefer quartz accuracy or smartwatch features (timers, notifications, fitness tracking) over mechanical charm.

Practical Buying Tips

• Try it on if possible. A 45.5 mm case can wear differently across wrists; strap choice changes the experience dramatically.
• If you plan to dive, ask the seller about water‑resistance testing policies and recommended service intervals.
• Consider picking up a quality rubber strap for summer or sports and a bracelet for daily wear to maximize versatility.
• Store the watch dial‑up and away from strong magnets when not in use. If you rotate watches, a few crown winds before wearing will jump‑start the movement.

Frequently Asked Questions

Is it suitable for swimming and diving?

• Yes. According to the listing, it is water‑resistant to 600 m (2,000 ft), far exceeding recreational needs. Always make sure the crown is fully secured before water exposure and rinse after saltwater or chlorine.

Do I need to wind it?

• It’s an automatic self‑winding watch. Daily motion keeps it going, but if it’s been off the wrist for a day or two and stops, give it a gentle manual wind and set the time.

Will the crystal scratch?

• The listing specifies sapphire, which is highly scratch‑resistant in daily use. It’s not scratch‑proof or shatter‑proof, so avoid sharp impacts.

What about lume, bezel action, or bracelet quality?

• Not specified. If these details are important to you, request specifics from the seller before purchasing.

What size wrists does it fit best?

• Preferences vary, but many find ~45.5 mm most comfortable on medium to larger wrists. If your wrist is smaller, choose a strap that helps the watch hug the wrist.

Specs

Final Thoughts

If you’re shopping for an automatic dive watch that emphasizes durability, clarity, and serious water resistance, this model checks those boxes without fuss. The 45.5 mm case brings presence and legibility; the sapphire crystal and 600 m rating add practical confidence for daily life and ocean days alike. If the size works for your wrist and you’re comfortable with a few unlisted details, it’s a straightforward, capable choice.

Ready to compare current offers, check stock, or see if there’s a bundle with your preferred strap? Explore the retailers above and pick the option that best matches your budget and delivery needs.