TUDOR Pelagos Ultra 43mm Watch M2543C1A7NU

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The TUDOR Pelagos Ultra 43mm (Ref. M2543C1A7NU-0001) delivers legitimate extreme diving capability with 1000m water resistance that meets commercial saturation diving standards. The dual-grade titanium construction combines Grade 2 and Grade 5 titanium for optimal strength-to-weight ratio, whilst the METAS Master Chronometer certification validates performance under extreme conditions beyond standard COSC requirements.

At 43mm with 14.5mm thickness, this maintains reasonable proportions despite housing the robust movement and achieving extreme water resistance. The dual-grade titanium keeps weight manageable whilst providing the strength needed for commercial diving operations. The scaled-up dial layout with thicker hands and larger markers ensures legibility in low-visibility deep-sea conditions.

The Manufacture Calibre MT5612-U delivers 65-hour power reserve with both COSC and METAS certification, testing precision, magnetic resistance, and waterproofness as a complete system. The helium escape valve confirms this is built for saturation diving where helium infiltration becomes a real concern at extreme depths.

The redesigned T-fit bracelet system enables rapid adjustment for varying wetsuit thickness without tools, whilst the visual indicator confirms proper extension setting. The dual-colour luminescence uses blue and green to differentiate functions during underwater operations.

This Pelagos Ultra suits buyers who need genuine extreme diving capability rather than recreational dive watch aesthetics. The 1000m rating serves commercial diving operations, offshore construction, and technical diving where conventional dive watches reach their limits. The titanium construction and METAS certification provide the reliability that professional deep-sea operations demand, making this legitimate equipment for serious underwater work rather than lifestyle sports watch territory.