Material – Sapphire Crystal
Type/Design – Double Dome (Domed top – Domed underside).
Dome Height – Low 1.5mm
Standard Free AR* coating options – Blue, No AR, and Clear AR*
Ref dimensions – Dia 29.8mm – Total Thickness 4.0mm – Edge 2.5mm
Suitable for – NY0040 NY0080 Citizen Promaster 200M Divers.