The Bi-Retrograde Chronograph from Franck Muller typically combines retrograde functions with a chronograph in an elegant and functional manner.
The 40mm size suggests a moderately sized watch that strikes a balance between presence and wearability on the wrist. Franck Muller's craftsmanship often extends to intricate detailing on the dial, which may include retrograde displays for tracking elapsed time, a chronograph feature for measuring intervals, and possibly other complications, all within the 40mm case.