Ollech & Wajs Swiss Automatic Ocean Graph Dive Watch with Decompression Bezel #OW-Oceangraph

The OW Ocean Graph is a tribute to the 1968 Ollech & Wajs Ocean Graph and all the dive watches that formed the highly respected ‘Precision’ line. These watches were equipped with patented decompression bezels – an essential instrument for the safety of any diver venturing into deep water. The colour scheme of the modern-day OW Ocean Graph and its bold triangular markers are inspired by distinctive graphic elements from historic OW references.

The OW Ocean Graph is the product of modern Swiss watchmaking. It is powered by a robust, modified ETA 2824-2 OW5P, adjusted in five positions. The movement’s mainplate is engraved with ‘Ollech & Wajs Zurich 1956’ and fitted with our own machined rotor, bearing the famous OW propellor monogram. The movement is housed in a 39.56 mm-diameter 316L stainless steel case, stamped, machined and brushed in the Swiss Jura.

The OW Ocean Graph is a compact diving watch, with an extreme water resistance of 1,000 m, tested under a pressure of 120ATM. Its water tightness is ensured by a reinforced case back, a double-thickness case, a 5.6 mm-thick, extra-strong, domed sapphire crystal, and a special screw-down crown with four gaskets. Like the Ocean Graph of old, it is equipped with a decompression bezel, allowing divers to calculate safe ascent times.* Its indexes and hands are oversized and covered with orange Super-LumiNova®, for increased readability in low-visibility conditions, above and below the surface.

The OW Ocean Graph comes on a 20 mm, hand-crafted, premium-quality blue Perlon one-pice RAF style band. Woven exclusively for OW, using premium-quality, lightweight braided nylon, which is highly water, saline and oil-resistant, the band offers a tactile blend of comfort and durability and is finished with a brushed stainless steel thorn buckle, signed ‘OWZ 1956’.

The OW Ocean Graph has an optional OW S-type Mark II beads-of-rice, stainless steel bracelet. This bracelet was inspired by those found on past Ollech & Wajs models of the 1960s. Its links are individually machined in a solid block of 316L stainless steel, before being carefully brushed, assembled and screwed by hand. This process prevents the usual stretching common among pressed steel bracelets, ensuring both longevity and comfort to the wearer. The bracelet‘s double-lock deployant clasp prevents accidental opening, while remaining easy to handle for divers.

The OW Ocean Graph comes on a 20 mm, hand-crafted, premium-quality blue Perlon one-pice RAF style band. Woven exclusively for OW, using premium-quality, lightweight braided nylon, which is highly water, saline and oil-resistant, the band offers a tactile blend of comfort and durability and is finished with a brushed stainless steel thorn buckle, signed ‘OWZ 1956’.

* The decompression bezel of the new OW Ocean Graph has three concentric zones. The most central zone indicates the elapsed dive time, from 0 to 60 minutes (A). It also contains indications for the maximum depth of the dive, carried out in metres (B). In the intermediate zone are marked the dive times (C) for which decompression will be necessary, according to the depth indicated in the most central zone (B). The outermost zone of the bezel indicates the decompression times, in minutes (D), that the diver must respect at a depth of 3 m, calculated according to the depth (B) and total duration of the dive (A).