A Yamaha and 2 Casios
Check out these Casio images:
A Yamaha and 2 Casios

Image by Jacob Whittaker
Theres a couple of MP3 tracks that use these here and here, and a webcast here.
The Casio 101 was used on these videos among others- Timing,Digitalisation, COS K08
Casio

Image by stigeredoo
My little loved Casio with it’s beautiful sounds
Casio Men’s DW9052-1V G-Shock Classic Digital Watch
Casio Men’s DW9052-1V G-Shock Classic Digital Watch
- Quartz movement
- Protective mineral crystal protects watch from scratches
- Case diameter: 46 mm
- Resin case; digital dial; day-date-and-month functions
- Water-resistant to 660 feet (200 M)
The simply designed Casio G-Shock Classic digital watch for men offers shock resistance that’s great for your most vigorous sporting activities. The durable rectangular black watch case measures 45mm wide (1.77 inches), and it’s matched to a comfortable black resin sports strap. The face has two windows that show time (bottom) and date (top) as well as a circular display for the stopwatch function, which can measure events down to 1/100 of a second for the first 60 minutes (and down to 1 second from 60 minutes to 24 hours). It also offers elapsed and split time modes, and 1st-2nd place times, and it includes a countdown timer with a 24-hour range. Other timekeeping features include a multi-function alarm, hourly time signal (which can be turned off), and 12/24-hour formats. This timepiece also features an Auto Calendar (pre-programmed until the year 2039), ±15-second accuracy per month, Afterglow backlighting, and water resistance to 200 meters (660 feet)–which will stand up to the rigors of recreational scuba diving.
List Price: $ 69.95
Price: $ 40.00

