Ollech & Wajs (Switzerland) Ref. OW Navichron – On Leather Strap

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“Named after a long line of OW specialty chronographs, our new Navichron is well suited to the conditions facing professionals and sportsmen around the world. A Valjoux 7753 based two-counter chronograph with a 12-hour sliding bezel, enabling travelers to determine time across different zones. But it is also a professional diving watch, its specially reinforced case, extra-thick sapphire glass, and unique 4 gasket pushers capable of withstanding over 50 atm of pressure, as well as markings for diving times on its bezel. Its baton style markers and hands feature Super-LumiNova®, to ensure maximum visibility in all conditions.  The Navichron’s movement pursues a long tradition of Valjoux chronographs, with historical references such as the V72, V92, V7730, V7733, and V7750. OW has devised its own PRECISION quality rating, which we start with a Valjoux 7753 with a brutalist matte finish, which we then reassemble with our own OW machined rotor, after which we engrave the mainplate with our brand, before removing the hours counter. We then reassemble it, regulate it, and then test its precision in 5 positions, as well as its duration.”

TECHNICAL SPECIFICATIONS:

> Dimensions: 39.56 mm (9h-3h) X 16.80 mm (thickness)
> Case: Brushed 316L stainless steel, screwed back, screw-down crown, twin pushers with 4 gaskets, 12H/20 mn rotating bezel, manufactured in Jura, Switzerland
> Glass: Sapphire with anti-reflective treatment 
> Dial: Hands and indexes in Super-LumiNova®
> Quick-change date push-button at 10h on case side
> Water resistance: 500m/ 50ATM 
> Movement: Modified automatic Valjoux Cal. 7753 OW PRECISION chronograph 5 position adjusted, 27 Jewels. 28,800 bph, with a power reserve of +/- 54 h. Mainplate engraved Ollech & Wajs Zurich 1956, and OW machined rotor 
> Origin: Over 90% Swiss Made, excluding strap and packaging (Please note that the Swiss Made percentage is calculated according to Swiss regulations and may vary depending on the exact configuration of the watch. This percentage does not include bracelets or accessories.)
> Strap included: 20mm wide, natural leather and linen, origin Italy
> Packaging: Leather origin Great Britain, Italian Kraft paper
> Warranty: 3 years against any manufacturing defect

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