Suitable Movement: Quartz VK63

Case diameter: 39mm diameter of the fixed bezel (excluding the crown)
Case thickness: 13.5mm
Strap width: 20mm
Strap material:rubber strap

Suitable dial size:29.5MM

Lens: Plain glass
Water Resistance:3ATM
Bezel size: 39mm-31mm (manual caliper may have 0.0 few error)

Case function buttons:
2 o'clock button: timing start/pause
4 o'clock button: reset
 

VK63 movement functions: (this link is only the case not including the movement)

3 o'clock: 24 hours display
9 o'clock: chronograph minutes
6 o'clock: second hand
Center position: chronograph hand