And Self takes it one other step additional by carrying the earliest model of that watch. How do we all know? Effectively there are signifiers on the dial by means of the Tudor rose brand close to 12 o’clock, and what’s come to be often called the “smiley face” textual content down close to six o’clock, which reads “Rotor Self-Winding.” The curved textual content is an indicator that the watch is powered by the ETA caliber 2824. In 2016, Tudor up to date the Black Bay line with manufacture (by way of a relationship with the motion maker Kenissi), chronometer-certified calibers (the MT5602). The brand new chronometer-grade BB’s have been signposted by adjustments on the dial. As an alternative of the rose brand, Tudor’s protect brand was added and as a substitute of the “smiley face,” there have been three straight strains of textual content.