From the fourth-generation Seamaster 300M introduced at BaselWorld 2018, which brought back the wave dial and the Co-Axial Master Chronometer calibre 8800, ref. 210.32.42.20.01.001 pairs a black dial with a matching black rubber strap.
Shape
Round
Lug Distance
20.00 mm
Glass
Sapphire
Thickness
13.56 mm
Diameter
42.00 mm
Water Resistance
300.00 m
Dial Color
Black
Material
Rubber