The BBS movement is manually wound, adding a regular interaction with the watch. Its 12mm case carries the flying tourbillon presentation in a steel frame. Rubber and a deployant clasp make the supplied configuration feel less formal than the leather or steel-bracelet B544 variants.
The matched blue strap gives the dial and wrist a continuous color line, yet the steel bezel keeps the outline crisp. That mix makes this the most athletic treatment of the B544. A leather version has more distance between the dial and the strap; the bracelet version makes the metal itself more prominent.
Before dispatch, our QC team reviews the carriage motion, translucent blue dial, rubber fit, steel bezel facets, and deployant clasp.