CASIO MTP-E720B-1A Black Ion-Plated Stainless Steel Watch

The Casio MTP-E720B-1A men's analog watch has a black ion-plated stainless steel case and band. It suits daily office and casual wear, while the date display, three-hand layout and 50 m water resistance keep everyday timekeeping simple. The black ion-plated finish gives the watch a uniform dark look.

The case measures 43 × 38.3 × 9.5 mm and weighs 101 g, so the midsize profile sits close to the wrist and slips under a shirt cuff. Spherical mineral glass protects the dial, and the curve helps you read the hands from an angle. A quartz movement runs on an SR920SW battery for about three years, with accuracy of ±20 seconds per month. The one-touch three-fold clasp opens with a single press, and the stainless steel band fits wrists from 150 mm to 205 mm.

Key features and benefits of the Casio MTP-E720B-1A

• Black ion-plated stainless steel case and band: The case and bracelet share a black ion-plated finish over stainless steel, which gives a consistent dark surface. The coating also helps hide minor marks that can appear with daily use.
• Case dimensions: 43 × 38.3 × 9.5 mm: The case is 43 mm wide, 38.3 mm long and 9.5 mm thick. That midsize footprint is designed to sit comfortably on adult wrists and keep a low profile under a cuff.
• Weight: 101 g: The watch weighs 101 g. The stainless steel build gives it a solid feel without making it heavy to wear through a workday.
• Spherical mineral glass: The dial is protected by mineral glass with a spherical curve. Mineral glass handles everyday scratches better than acrylic, and the curve can improve readability when you look at the watch from an angle.
• Water resistance: 50 m: The watch is rated to 50 m for hand-washing, rain and light surface swimming. It is not intended for diving or high-pressure water sports.
• Battery: SR920SW, about three years: A SR920SW battery powers the quartz movement and is expected to last around three years. Longer battery intervals mean fewer trips for service.
• Accuracy: ±20 seconds per month: The analog quartz movement is rated to within plus or minus 20 seconds per month. In normal use, that keeps the time close enough that you rarely need to reset it.
• Three-hand display with date: Hour, minute and second hands show the time, and a date window sits at the three o'clock position. You get the basic information you need without extra subdials or settings.
• One-touch three-fold clasp: The clasp opens with a single press and folds closed to secure the band. It is quick to put on or take off without tools.
• Band size: 150 mm to 205 mm: The stainless steel bracelet adjusts to wrists from 150 mm to 205 mm. That range covers many adult wrist sizes without needing extra links.
• Men's everyday design: The watch is sized and styled for men who want a straightforward analog timepiece. Its dark finish works with office shirts and casual outfits, and the date display adds daily usefulness.

Who the watch is for

The Casio MTP-E720B-1A men's analog watch suits men who want a simple, durable timepiece for daily wear. Its black ion-plated stainless steel build pairs with business-casual clothing, and the 50 m water resistance covers rain and hand-washing. The three-hand dial and date window keep the information easy to read at a glance. It is a practical choice for office days, commutes and weekend errands.

• Office professionals who want a low-maintenance watch that works with dress shirts.
• Commuters who value a clasp that opens with one press and a dial that shows the date.
• Weekend wearers who need 50 m water resistance for rain or hand-washing.
• Gift buyers looking for a recognizable brand and a classic three-hand layout.
• Men who prefer a stainless steel bracelet over a leather or resin strap.

Less suitable if: you need a dive-rated watch, a luminous dial for dark environments, or a lighter titanium or resin case.

Watch specifications

Using and caring for the Casio MTP-E720B-1A

Rinse the Casio MTP-E720B-1A with fresh water after contact with salt water or sweat, then dry it with a soft cloth. Avoid pressing the crown or buttons while the watch is wet. Have the battery replaced at a qualified watch service so the water resistance can be maintained, and ask for the gaskets to be checked during that service.

• Wipe the case and bracelet weekly with a microfiber cloth to keep the black ion-plated finish looking even.
• Store the watch away from strong magnets, which can affect quartz accuracy.
• Adjust the bracelet by removing links if the clasp sits too loosely on the wrist.
• Do not operate the crown underwater; the 50 m rating covers static pressure only.

How to choose the right watch

When you choose an analog quartz watch, case size, water resistance, band material and battery life are the main factors. The Casio MTP-E720B-1A has a 43 × 38.3 × 9.5 mm case that fits most adult wrists, 50 m water resistance for daily splashes, a stainless steel bracelet with a one-touch three-fold clasp, and an SR920SW battery rated for about three years. If you need a dive rating, a lighter case or a luminous dial, this model is not the right match.

Frequently asked questions

What materials make up the Casio MTP-E720B-1A?

The case and band are stainless steel with a black ion-plated finish. The ion plating gives the watch a uniform dark surface, and the stainless steel construction provides the main structure.

How large is the watch on the wrist?

The case measures 43 × 38.3 × 9.5 mm and the watch weighs 101 g. The midsize dimensions are intended to fit most adult wrists without a bulky feel.

Can I swim with the Casio MTP-E720B-1A?

It has 50 m water resistance, which covers hand-washing, rain and light surface swimming. It is not rated for diving or high-pressure water sports.

What kind of glass covers the dial?

The dial uses spherical mineral glass. Mineral glass resists everyday scratches better than acrylic, and the curved shape helps with readability from an angle.

How often does the battery need replacing?

The SR920SW battery is expected to last about three years. Battery replacement is best handled at a qualified watch service.

Does the watch show the date?

Yes, there is a date window at the three o'clock position. The rest of the dial uses a three-hand analog layout for hours, minutes and seconds.

What wrist sizes does the band fit?

The stainless steel band adjusts to wrists from 150 mm to 205 mm. Links can be removed to fine-tune the fit if the clasp sits loosely.

How does the clasp work?

The one-touch three-fold clasp opens with a single press and locks when closed. It lets you put the watch on or take it off without tools.