Casio G-Shock GBA-900UU-5AER

Actual glass with heat treatment to prevent scratches. All G-Shocks have at least a mineral glass; the more expensive ones have a sapphire layer on top of it.

You can choose from over 300 cities to set a secondary time, and you can display the time for two locations at the same time. Automatic daylight saving can be toggled. (On a side note, we should all stop that nonsense.)

This isn't your usual egg timer: you can set up to five different times and repeat them in various orders for 1–20 times. E.g. you can program 10 minutes of jogging, 4 minutes of sprinting, 10 minutes of jogging again, and then 4 minutes of running. The timers can be set with 1-second increments up to 60 minutes and automatically started with a 5-second countdown.

Stopwatch with 1/100th precision to 60 minutes and 1-second precision to 24 hours. The watch keeps a record of 45 times and displays split and lap times as well as pace/distance.

You can set five daily alarms and hourly time signals on/off.

You don't have to check the date setting of this watch each month: leap years, Februaries, and Biblical events are covered for a very long time – automagically.

Dual Super Illuminati backlights. You can make it automatic (usually unnecessary), and the Afterglow can be set to 1.5 or 3 seconds.

Use the G-Shock Move application to use the watch as a training tool to measure and log your activity and goals.

Pairing the watch with a smartphone ensures the watch keeps the exact time automatically. You can also opt to get notifications for messages, phone calls, and so on. The door swings both ways: using the Phone Finder allows to make your phone ring – even when silenced – in case you have trouble finding it.