Casio MDV-107D-5A Duro Stainless Steel Dive Watch Brown Dial

Casio MDV-107D-5A Duro is a men's dive watch with a brown sunburst dial and stainless steel case and bracelet. It offers 200 metres of water resistance and a unidirectional rotating bezel. The watch suits men who want one timepiece for daily wear and water activities. Its quartz movement keeps maintenance low.

The 200-metre water resistance rating means the Casio MDV-107D-5A Duro dive watch can handle swimming, snorkelling and recreational diving. A unidirectional bezel turns only counter-clockwise, so you can time a dive without accidentally moving it the wrong way. Luminous hands and hour markers glow in low light after charging in daylight. The quartz movement runs on a battery for about three years and keeps time to within roughly ±20 seconds per month.

Key features and benefits of the Casio MDV-107D-5A Duro

• 200 metre water resistance: The case, screw-down crown and mineral crystal are sealed to withstand pressure at 200 metres (20 bar). This rating lets you swim, snorkel and dive with the watch on your wrist.
• Stainless steel case and bracelet: The case and three-link bracelet are made from 316L stainless steel, which resists corrosion from salt water and sweat. Solid links and a fold-over clasp with safety catch keep the watch secure during activity.
• Brown dial with applied indices: The brown dial has a sunburst finish and applied hour markers that sit above the surface. This adds depth and makes the time easy to read at a glance.
• Unidirectional rotating bezel: The bezel clicks in 60 one-minute increments and turns only counter-clockwise. You can use it to track elapsed time, and the one-way action prevents accidental movement if bumped.
• Luminous hands and hour markers: A photoluminescent coating on the hands and markers absorbs light and emits a green glow in low light. This keeps the time visible in dim rooms or murky water without pressing a button.
• Quartz movement: The watch runs on a quartz movement (Casio Module 2035) powered by a battery. It needs no winding and keeps time to within about ±20 seconds per month.
• Date display: A date window at three o'clock shows the day of the month in white on black. The date changes automatically at midnight and can be quick-set using the crown.
• Screw-down crown: The crown threads into the case tube to create a watertight seal when fully tightened. Unscrew it to set the time or date, then screw it back down before any water contact.
• Mineral crystal: The watch uses a hardened mineral crystal, which resists everyday scratches better than acrylic. It handles normal knocks well, though it is not as shatter-resistant as sapphire.
• Solid case back: The stainless steel case back screws into the case and protects the movement. It also helps maintain the 200-metre water resistance rating.
• Case dimensions and weight: The case measures 44 mm in diameter, 12.5 mm thick, with a 22 mm lug width, and the watch weighs 165 g. These dimensions give the watch a substantial presence on the wrist.
• Included items: The package includes the watch, a box, a manual and a warranty card. You have the paperwork and packaging needed from the start.

Who the dive watch is for

The Casio MDV-107D-5A Duro suits men who want a single watch that works for daily office wear and water sports. The brown dial and steel bracelet look smart enough for business casual, while the 200-metre rating and dive bezel make it functional for swimming and snorkelling. It also appeals to first-time watch buyers who prefer quartz reliability and low maintenance.

• Daily commuter who swims laps at lunch and wants one watch for both
• Weekend snorkeller or recreational diver needing a reliable timing bezel
• Outdoor worker exposed to rain, sweat or occasional submersion
• Collector looking for a heritage dive design from a well-known Japanese brand
• Gift buyer who wants a watch from a known brand with clear specifications

Less suitable if: you require a sapphire crystal for maximum scratch resistance or a professional dive watch with ISO 6425 certification and a helium escape valve.

Dive watch specifications

Using and caring for the Casio MDV-107D-5A Duro

Rinse the watch with fresh water after contact with salt water or chlorine to prevent corrosion on the stainless steel bracelet and case. Keep the screw-down crown fully tightened whenever the watch is near water. Have the water-resistance seals checked every two years or after a battery change. Clean the bracelet with a soft brush and mild soapy water, then dry it with a lint-free cloth. Store the watch away from strong magnets and direct sunlight.

• Rinse under lukewarm tap water after ocean or pool use
• Screw the crown down completely before any water contact
• Schedule a seal check every 24 months or at battery replacement
• Brush the bracelet with mild soap, rinse and dry with a lint-free cloth
• Keep the watch away from speakers, magnetic clasps and electronics

How to choose the right dive watch

When picking a dive watch, consider water resistance, bezel action, legibility and strap compatibility. The Casio MDV-107D-5A Duro offers 200 metres of water resistance and a unidirectional 60-click bezel for timing dives. Its luminous hands and markers provide clear reading in low light, and the 22 mm lug width lets you swap the steel bracelet for a rubber or NATO strap. The 44 mm case suits wrists that can carry a larger watch, so check the dimensions if you prefer a smaller profile.

Frequently asked questions

What is the water resistance of the Casio MDV-107D-5A Duro?

The Casio MDV-107D-5A Duro is rated to 200 metres (20 bar), which makes it suitable for swimming, snorkelling and recreational scuba diving. The screw-down crown and case back help maintain this seal.

Does the watch have a sapphire crystal?

No, the Casio MDV-107D-5A Duro uses a hardened mineral crystal. Mineral glass resists everyday scratches but is not as hard as synthetic sapphire.

Can I change the bracelet to a rubber strap?

Yes, the lug width is 22 mm, so you can fit any 22 mm strap or bracelet with standard spring bars. This lets you switch to a rubber or NATO strap for water sports.

How long does the battery last?

The battery in the Casio Module 2035 movement typically lasts about three years. A jeweller can replace it and pressure-test the seals at the same time.

What is the bezel made of?

The bezel insert is aluminium with printed numerals. Aluminium is lightweight and resists fading, though it can show scratches more than ceramic.

Is the luminous material radioactive?

No, the luminous coating is a modern non-radioactive photoluminescent pigment. It charges from any light source and glows in low light.

Is the watch suitable for professional saturation diving?

The Casio MDV-107D-5A Duro lacks a helium escape valve and ISO 6425 certification, so it is not intended for saturation or mixed-gas diving. It is designed for recreational water activities.

What is included in the box?

The package includes the watch, a box, a manual and a warranty card. You get the complete set for ownership and reference.