[Dimensions (DIAxD)] 102.5x68mm / 4.1×2.7inch
[Weight] Approx. 259g / 9.1oz
[Depth rating] 100m / 330ft
[Construction] Corrosion-resistant aluminum alloy (alumite coating) + Tempered glass
[Distance] Between  the mount and the inner glass surface: 38.5mm / 1.5 inches