The Bulgari Diagono Professional GMT (Ref. GMT40S), often referred to as the "Pepsi" due to its distinctive blue and red 24-hour ring, is a versatile travel watch that blends Italian jewelry design with professional-grade functionality.

• Case: 40mm stainless steel with a tonneau-shaped design and hinged lugs for a comfortable fit.

• Bezel: Bidirectional rotating steel bezel engraved with a 24-hour scale.

• Dial: Features a high-gloss black or silver-tone finish with luminous markers. A notable "Pepsi" blue and red inner ring indicates day and night hours for the GMT function.

• Movement: COSC-certified chronometer automatic movement (typically Calibre 312), featuring a 42-hour power reserve.

• Functions:

  • Quick-Set Local Time: Screw-down pushers at 2 and 4 o'clock allow the hour hand to be adjusted forward or backward independently.

  • Date: A dedicated subdial at 6 o'clock, adjusted by a pusher at 8 o'clock.

  • Three Time Zones: Can track three separate time zones simultaneously using the central hands, GMT hand, and rotating bezel.

• Strap: Usually equipped with an integrated heavy-duty rubber strap and a stainless steel double deployant clasp.