Squale 1521-026 ONDA Blue / 50 Atmos blue ONDA is designed for the professional diver:
The classic 500-meter professional diver with the characteristic and famous "von Büren" case. A case that was part of lots of famous dive-watches over the decades, as Squale supplied these also to other big and small Swiss brands. Recognition for the sheer quality of engineering and timeless design by Squale founder: Charles von Büren
This unique and highly recognizable shape features a signed screw-down crown on the 4 o´clock position which is recessed and well protected against unwanted impact. Due to the recessed crown and the elegant flowing design of the polished case, the watch is exceptionally comfortable to wear even on a smaller wrist. The hand-painted black dial with the distinctly designed luminescent markers of Superluminova provides excellent legibility in low-light situations.
The smooth,coin-shaped 120 clicks uni-directional bezel partners well with the orange minute hand providing crucial, at a glance, information on remaining or elapsed dive-time. The scratch-resistant sapphire crystal is enhanced with anti-reflective treatment on both sides and protects this timepiece up to 500 meters below sea level or 50 atmospheres of pressure.The great attention to detail and quality is easy to see in the acid-etched case back and the sapphire-crystal guarding the superluminova on the bezel. Great details give this iconic timepiece a contemporary look and feel but still paying respect to its classic, unique design and brand philosophy. 
The Swiss Made ETA 2824 automatic movement gives the watch its mechanical reliability and accuracy under the toughest circumstances.
This model comes on a black rubber strap, other combinations are possible.
  We are proud to offer a two-year warranty on every Rolex watch offered by us. Other brands come with a one-year warranty unless otherwise mentioned. The warranty includes the functioning of the watch including the functioning of any present complications. Excluded from the warranty are: water damage, turn and push buttons, crystal, watch strap and clasp.