The Breitling B01 based movement

The MT5813 is based – or derived – from the Breiling B01 movement. The B01 chronograph movement is actually an in-house movement developed and produced by Breitling.

If you look at both movements, you can definitely see the similarities. The rotor and escapement are those from Tudor though. Interesting enough, you will find the Tudor three-hands movement (MT5612) in the Breitling Super Ocean. So both companies joint forces and exchanged technology basically. An interesting move from these companies and a powerful statement to big(ger) groups like Swatch Group.

The caliber MT5813 movement is chronometer certified by COSC and has a power-reserve of 70 hours. Just as the Breitling B01 (all B01s are chronometer certified as well). It has a column-wheel chronograph for precise action and ticks at 28800vph. Interestingly, the chronograph minute counter has a 45-minute scale. The balance-wheel has a micro-adjustment by screw and the balance spring is made of silicon (and thus non-magnetic).

The early batches came with a fabric strap. This strap, a denim-style Jacquard woven strap, is something special according to Tudor. These are woven on 19th century Jacquard looms by a 150-year-old family firm from the region of Saint-Étienne.