The limited contrast should not be an issue for someone with normal sight, and if its too dark you simply press the "light" button (lower button on the right side) and you can read the time.

The 5600BB has four screens, the main screen shows time, date, month and day (both 24 hour and AM/PM functions) Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. Not much more to say about the strap other than that it is a good match for this model. Specifications Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.Legendary Japanese electronics company Casio is loved for its range of innovative and reliable watches. Casio offers both analogue and digital watches for men and women in a variety of styles and colours, perfect for everyday wear, sportswear and more adventurous activities. The lugs on the case a small or only 16 mm, but the included strap has large shoulders, this makes the use of alternative straps more difficult. The strap is rather comfortable on the wrist and also very durable. It doesn’t really acquire scratches, and it is also very easy to clean. The case of the 5600BB is close to 44 mm wide and is basically a rubber protective cover that covers a hard plastic watch case.

Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours. For me it has been performing well in the tasks I need this watch for, but it won't be replacing my analogue watches in the office, but due to the stealth look of the watch, It would probably not cause any problems to use it at the office. The screen window of the 5600BB is about 30 mm wide but the actual LCD is only 20 mm wide. Some people think that the LCD looks a bit small for this watch, but its nothing that bothers me at all.

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The distance between the strap adjustment holes is about 5 mm, so the steps between each position is fairly large, making it a bit more difficult to adjust to an optimal size than some other straps with 3-4 mm distance between holes. Technical amendments and errors excepted. The sizes in figures do not correspond to the original sizes. I found dust to build up a bit around the screen of the watch, and due to the surrounding plastic cover its a lot more difficult to wipe it off than with a traditional watch. On top of the case is a mineral crystal. This is not as tough as a sapphire crystal, but at this price point, it is what we can expect. The resin housing is the ideal everyday companion. It is durable, lightweight and relatively insensitive to cold, heat or other external influences.

Multi-Function Alarms: 1. Daily Alarm; 2. Monthly Alarm; 3. Alarm for a particular time each day of a particular month; 4. Date Alarm, Hourly time signal: The watch beeps every hour on the hour Below are a few picture of the 5600BB arranged with a few different straps so you can see how the watch could possibly look if it were possible to use normal straps. This movement has an accuracy of +/- 15 seconds per month. Missing is what would’ve been a very useful second-time zone. Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, Measuring Unit: 1/100th second Then there is the the timer (count down screen), with an audible beeping when completed, you can count down from 24 hours.A sporty watch, of course, needs good water resistance, and this watch has a water resistance of 200m/660 feet, which makes it suitable for essentially any water activity that you may subject it to. I would really like a more standard size of lugs even if it meant a little weaker spring bars, because frankly its not spring bar failure is a very common problem, even on much heavier watches. And when a watch is protected, you should worry even less about that.

You can see some writing around the screen "adjust-mode- start/stop-light" and also Casio beneath the screen. As mentioned, the case has a rectangular/square design, and this allows the watch to wear slightly differently from traditional watches. This is why this watch actually wears smaller than its dimensions may suggest. To protect the case and the screen, the bezel protrudes so that it sits above the screen. The case also has ”bumpers” on the sides of the case to protect it further, including its buttons. The unusual lug width (or rather lug width compared to strap width) of the watch makes finding any alternative straps a problem, and will sometimes require you to cut into and permanently alter any strap you want to use with the watch,or force you to buy adaptors to fit other straps.

The contrast between the two is not as much as I thought when looking at photos when using the watch indoors in low light situations, but is really clear in sunlight and bright conditions.