Omega has retained many of the iconic features of the
original watch that inspired the design but has added several
updates. All three subdials are black, as well as the minutes
track. The polished ceramic bezel features a white enamel pulsometer
scale. The pulsometer scale in particular is a special
feature of the CK 2998. In the original models, customers could
choose from four different versions of the timing bezel: tachymeter,
pulsometer, decimal or telemeter. The new Speedmaster
has an Omega 1861 calibre, a main feature of the Moonwatch
collection.