Reddit reviews Casio Phys Timers 11 Watch RFT-100-1JF Japan Import

最近、気になっている腕時計

CASIO 腕時計 PHYS TIMERS11
https://www.amazon.co.jp/dp/B000LP311E/
バイブレーション機能付きで、日常生活で便利に使えそう。

MONDAINE 腕時計 エヴォ メンズ ホワイト文字盤 ブラックレザーストラップ
https://www.amazon.co.jp/dp/B0009362AU
スイス国有鉄道の公式腕時計。究極のシンプルデザインで非常に見やすい。

The Casio RFT-100 was developed for the 2006 World Cup, and is a solid referee watch. Pre-programmed halves, tilt-night glow, vibration-only operation (selectable), made for soccer. The only downside is that over time, the spring bar that holds the band to the watch can pull through the plastic. I've broken one with a ball to the wrist, and the band pulled the spring bar loose. Because it's plastic, it scores the watch, and the spring bar will pull easily from then on, and can't be repaired.

I've been using a 1st-generation Spintso referee timer and it's quite good as well. While there are no pre-programmed times, it's built for one-touch operation. Once the times for the halves are programmed, all other operations are one-touch. For example, once you set the halves for 45-minutes, and, for example, select 10 minutes for the halftime break, you just use one button to start/stop for anything after that.

The workflow for the Spintso is like this:

• Set duration of halves
  
• Set duration of halftime break
  
• Long-press start/stop button to start match. Begins counting down from 45mins to zero on one timer, and match counter begins counting up from zero.
  
• Long-press for any stoppage (injury, time-wasting, etc.) Watch automatically begins counting stoppage time. The stoppage time indicator begins climbing up from zero. Watch vibrates every five seconds when stoppage time is enabled to remind you that match time is stopped.
  
• Long-press start/stop button again to end stoppage time and resume match. Stoppage timer stops, and match timers resume (1st period timer decrements toward zero, match timer increments from zero upward)
  
• When the half expires, the watch vibrates. The stoppage counter shows you how much time to add. The match time automatically adds the stoppage time, and vibrates to let you know that the half, plus stoppage has expired, and begins the halftime period timer.
  
• When the half-time timer expires, the watch vibrates to remind you to start the second half. It waits for you to start the second half - you don't have to start right when the halftime timer expires. Just long-press the start/stop button to begin the second half.
  
• Just as in the 1st half, long-press the start/stop button anytime you need to add stoppage time (injury, time wasting, etc), and the stoppage time increments, the match half timer stops, and the full match timer keeps incrementing. The watch will vibrate every few seconds to remind you that you are in stoppage time mode. Long-press the start/stop button to resume match.
  
• When the halftime timer decrements to zero, the stoppage timer begins displays how much time to add. The match timer increments to the half duration plus stoppage, and vibrates when that time expires. End the match.
  
  The cool part is that it's all one-button operation once you've set the halves and halftime duration. Takes some getting used to, but it's very easy once you've done it a few times. It has three modes - the regular watch mode, which displays the day of week, year, month/day, time (with Daylight Savings mode with one press to switch modes) (hours/minutes/seconds). The second mode is game mode, which displays Time Zone (you can select any time zone in the world), hh:mm:sec, month/day at the top, am/pm, which period you're in (1st or 2nd), minutes remaining in half, then the bottom displays total match time (incrementing from zero), stoppage time.
  
  When you enter halftime period, the halftime timer appears, and decrements from whatever duration you've set.
  
  The last mode is stopwatch mode. It just starts/stops a timer from zero.
  
  Hope that helps!

your choices, basically:
-any old cheap timex with any kind of timer function will suffice, and last for a good long while.
-a nice watch made for reffing, often with vibrate features. Spintso watch or this one is what i use, personally. Spintso is expensive, but I've heard you can often find last year's model for a decent price if you know where to look.
-a smartwatch. Something that can pair to your smartphone, or a fitness-centric model like something from garmin or polar. these typically offer less soccer-specific settings, but allow you to track steps, heartrate, and all sorts of things like that.

Casio RFT-100
I got this watch for my birthday last season and I would highly recommend it.
It's the smallest and lightest watch I've ever worn yet the numbers are large and easily readable with a quick glance.
It's got many different options, all of which are simple to use. The preset halves are especially useful.
It's a bit more expensive than most digital watches but trust me, you won't regret buying it. Although I'm not sure if they make them anymore so get in quick!