The OW P-104 descends from an era when aviators, engineers and navigators relied on their watches to help them make complex calculations on the ground and in the air. It’s not based on a single OW reference but inspired by an assemblage of pilot’s slide-rule watches made by Ollech & Wajs in the 1960s and 70s. Designed with today’s military and commercial pilots in mind, the P-104 S is equipped with a circular slide rule to determine differential speed, distance, range and other data.
Dimensions
39 mm × 12.5 mm
Case
Brushed 316L stainless steel, screwed back, screw-down crown, and circular slide-rule bezel, manufactured in Jura, Switzerland.
Glass
Sapphire with anti-glare treatment.
Dial
Hands and indexes in Super-LumiNova®.
Water resistance
300 m / 30ATM
Movement
Automatic ETA 2824-2 OW3P, 25 jewels; 28,800 bph, with a power reserve of +/-38 hours; mainplate engraved ‘Ollech & Wajs Zurich 1956’; and OW-machined rotor.
RAF regimental band
20 mm, premium-quality, highly durable RAF regimental-style nylon band, made in Great Britain, hand-finished in Switzerland; with a brushed stainless steel thorn buckle, signed ‘OWZ 1956’.