Oris Divers Sixty-Five 733 Sky Blue 38 mm Stainless Steel Watch

Oris Divers Sixty-Five Sky Blue 38 mm

The Oris Divers Sixty-Five 733 is a 38 mm stainless steel watch with a sky blue dial under a double-domed sapphire crystal. It runs on the Swiss automatic calibre 733-1 beating at 28,800 vibrations per hour with a 41-hour power reserve. The uni-directional rotating coin-edge bezel and screw-down crown support water resistance to 100 metres. This unisex luxury piece suits daily wear and light diving.

Mechanical movement limits and water resistance

The automatic movement requires regular wrist motion or manual winding to maintain its 41-hour reserve; it will stop if left unworn for longer. Water resistance is rated at 100 metres, which covers swimming and snorkelling but not scuba diving with compressed air. The screw-down crown must be fully tightened before any water exposure. The sapphire crystal has an internal anti-reflective coating for legibility.

Straightforward bracelet fitting and crown care

The 19 mm stainless steel bracelet fastens with a security folding clasp that opens and closes without tools for most wrist adjustments. A micro-adjustment on the clasp allows fine tuning if the standard links feel loose or tight. The screw-down crown at 3 o'clock must be unscrewed before setting the time or date at 6 o'clock, then screwed back down to seal the case. Forgetting to re-secure the crown is the most common cause of moisture ingress.