MB&F LM Perpetual Calendar in Color: Three Gem-Set Watches Redefine the Perpetual Calendar. MB&F will launch the LM Perpetual Chromatic collection in 2026, featuring three ultra-limited edition watches adorned with baguette-cut rubies and sapphires from the award-winning Legacy Machine Perpetual. A Rare Encounter with Color Since 2015, the LM Perpetual watch has become one of the most iconic perpetual calendar watches in contemporary watchmaking. Now, in 2026, MB&F reinterprets this milestone with new colors. Three watches are being released: two in 18K white gold with bezels set with blue or purple sapphires respectively; and another in 18K red gold adorned with Mozambique rubies. Each is a limited edition, making it one of the rarest LM Perpetual watches to date. Dial: A Stage for Complications The LM Perpetual watch does not feature a traditional dial. Conversely, the open structure of the movement itself becomes the dial, making the full perp...