46.2mm diameter 15.4mm height
Engraved ‘Big Pilot’s Watch Heritage’ on caseback
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This was the first BP using a refined version of the 50000-calibre family with a bidirectional Pellaton pawl-winding system with two barrels for the 7 days’ power reserve (52110 Calibre). The winding pawls and the automatic wheel are now made of black ceramic while the rotor bearing is made of white ceramic. These extremely hard high-tech materials make the automatic winding system practically wear-free. The design and finish of the movement has also been enhanced while the proportions of the rotor and the inset “Probus Scafusia” gold medallion are noticeably slimmer than prior Calibres.