Montblanc Iced Sea Automatic Date 0 Oxygen 41mm /Root/Start/Breitling/Navitimer B01 Chronograph 43 RX presents the Big Bang

RX presents the Big Bang in its original 44 mm form in an all-black execution

The sapphire crystal permanently protects the dial from scratches and maintains a clear view

Within the Skyline line

delivers strong everyday practicality and clear legibility — ideal for active pursuits as much as for elegant occasions

Montblanc Iced Sea Automatic Date 0 Oxygen 41mm /Root/Start/Breitling/Navitimer B01 Chronograph 43 RX presents the Big BangMontblanc Iced Sea Automatic Date 0 Oxygen 41mm (Reference 134017) Reference 134017 brings the 0 Oxygen construction to the larger 41 mm case. The gray dial remains understated, and the rubber strap makes it practical for everyday use in the water. The case is made of stainless steel. Without oxygen inside the case, no condensation can form the process is specifically designed for the transition between cold water and warm ambient air. An automatic