From BaselWorld 2016's third-generation Planet Ocean lineup, reference 215.30.44.21.01.001 uses the Master Co-Axial 8900 in a 43.5mm case, a dimension previously reserved for the GMT, and pairs a black ceramic dial with a black ceramic bezel.
Shape
Round
Lug Distance
21.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
16.09 mm
Diameter
43.50 mm
Water Resistance
600.00 m
Dial Color
Black
Material
Bracelet