POLO BP3790X.650 41mm Black Mother-of-Pearl Men's Wrist Watch

The POLO BP3790X.650 is a men's wrist watch in black ion-plated steel, distinguished by a genuine black mother-of-pearl dial. Its 41mm case sits comfortably on most wrists, and the quartz date movement keeps time without winding. It suits anyone who wants one dark, understated watch for the office and the weekend.

The case measures 41mm across, a mid-size that balances presence with everyday comfort. Stainless steel carries a black ion-plated finish, and the matching bracelet uses the same treatment on solid links, so the watch reads as one continuous dark piece. Genuine black mother-of-pearl forms the dial, which means the surface shifts in tone as light moves across it, and no two dials are identical. A sapphire crystal with a ceramic anti-reflective coating protects the face, while 5ATM water resistance covers rain, hand-washing and surface swimming. The POLO BP3790X.650 fastens with a standard tang buckle.

Key features and benefits of the POLO BP3790X.650

• 41mm case diameter: The case measures 41 millimeters across, a versatile mid-size that suits most adult wrists. That size gives the watch enough presence for a blazer without crowding a smaller arm.
• Black ion-plated stainless steel case: The case is stainless steel finished with black ion plating, a coating that bonds to the metal rather than sitting on top of it. The result resists scratches and fading better than painted finishes during daily wear.
• Black mother-of-pearl dial: The dial is cut from genuine black mother-of-pearl, a natural material with an iridescent sheen. Each dial shows its own pattern, so the watch has a subtle individuality you notice in changing light.
• Black IP stainless steel bracelet: Solid steel links carry the same black ion plating as the case, keeping the look consistent from lug to clasp. The treated surface holds up to the rubbing that happens at a desk or on a steering wheel.
• Quartz three-hand movement with date: A battery-powered quartz calibre drives the hour, minute and second hands plus a date window at 3 o'clock. Quartz keeps steady time without winding, so the watch is ready whenever you pick it up.
• 5ATM water resistance: The watch is rated to 5 atmospheres, which equals 50 meters. That covers rain, washing your hands, showering and surface swimming, though it is not built for diving or high-pressure water sports.
• Sapphire crystal with ceramic anti-reflective coating: The glass combines sapphire hardness with a ceramic anti-reflective layer. It shrugs off contact with keys and coins and cuts glare so the dial stays readable outdoors.
• Tang buckle closure: A standard tang buckle threads the bracelet end through the clasp. It is simple to fasten one-handed and lets you fine-tune the fit.
• Two-year international warranty: POLO covers manufacturing defects for two years through authorised service centres worldwide. It is useful cover for anything that goes wrong early in the watch's life.

Who the wrist watch is for

The POLO BP3790X.650 suits men who want a black-on-black steel watch that works from desk to dinner without looking sporty. The 41mm case fits average to larger wrists, and the mother-of-pearl dial gives it a quiet point of difference that pairs well with business-casual and smart-casual clothes. Because the watch is rated to 5ATM, you can leave it on through hand-washing or a sudden downpour.

• Office days with shirts, knitwear and blazers
• Evening dinners where a low-key shine is welcome
• Weekend outings and poolside afternoons that involve splashes
• Travel, where a quartz movement needs no winding or setting ritual
• A gift for someone who keeps to a monochrome wardrobe

Less suitable if: you need a watch for scuba diving or high-impact sport, or you prefer a leather strap for black-tie formality.

Wrist watch specifications

Using and caring for the POLO BP3790X.650

The ion-plated finish and sapphire crystal take everyday knocks in their stride, but abrasive surfaces can wear any coating over time, so keep the case away from rough stone and brickwork. After contact with saltwater or chlorine, rinse the watch in fresh water and dry it with a soft cloth before storing it.

• Wipe the case and bracelet with a microfibre cloth each week to lift skin oils and dust from the links.
• Keep perfumes, solvents and harsh cleaners away from the plated surfaces, since they can dull the finish.
• Store the watch in a dry pouch or box when it is not on your wrist to avoid scratches from other items.
• Have the battery changed by a qualified watchmaker, who can reseal the case to keep the 5ATM rating intact.
• Ask a jeweller to size the bracelet properly so the case sits still on your wrist rather than rotating.

How to choose the right wrist watch

Four factors do most of the work when you pick a steel wrist watch: case size, finish, water resistance and movement. A 41mm case like the one on the POLO BP3790X.650 suits most adult wrists and stays comfortable under a cuff. Ion plating over stainless steel gives a harder surface than paint, which matters if the watch shares your desk all day. A 5ATM rating means you can wear it in the rain and while swimming at the surface, no more. Quartz with a date window means no winding and a quick glance for the day of the month.

Frequently asked questions

What is the POLO BP3790X.650 made of?

The case and bracelet are stainless steel with a black ion-plated finish, and the dial is genuine mother-of-pearl. A sapphire crystal with a ceramic anti-reflective coating covers the face.

What does 5ATM water resistance mean on this watch?

5ATM is a pressure rating equal to 50 meters of depth. It covers rain, showering, hand-washing and surface swimming, but the watch is not intended for diving or high-pressure jets.

Is the black dial real mother-of-pearl?

Yes, the dial is made from genuine black mother-of-pearl. Because it is a natural material, each dial shows a slightly different iridescent pattern under light.

Does the watch need winding?

No. The quartz movement runs on a battery and drives the hour, minute and second hands plus the date window at 3 o'clock. It keeps running until the battery needs replacing.

Can the steel bracelet be resized?

The bracelet is made of solid steel links, which can be removed or added to change the length. A jeweller or watchmaker can adjust it to fit your wrist precisely.

What size wrists does the 41mm case suit?

A 41mm case is a mid-size that fits most adult wrists comfortably. It gives the watch some presence without overhanging a narrower arm, and the bracelet adjustment helps you get a close fit.

How does this watch differ from a classic dress watch?

A classic dress watch usually pairs a leather strap with a domed crystal. The POLO BP3790X.650 uses a black ion-plated steel bracelet and a flat sapphire crystal, so it handles moisture and daily wear more easily.

What does the warranty cover?

POLO provides a two-year international warranty that covers manufacturing defects, with service carried out by authorised centres. Damage from accidents or normal wear is not part of that cover.