Ollech & Wajs (Switzerland) Ref. OW Navichron S – On Steel Bracelet

> FREE VINTAGE NATO WITH THE PURCHASE OF THIS WATCH* <

“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  The Navichron’s movement pursues a long tradition of Valjoux chronographs, with historical references such as the V72, V92, V7730, V7733, and V7750.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.

The bracelet of the OW Navichron S, the OW S-Type Mark II, was inspired by those found on past Ollech & Wajs models of the 1960’s. 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 from the usual stretching common among pressed steel bracelets. It ensures both longevity to the bracelet and comfort to the wearer. The bracelet’s double lock deployant clasp prevents any accidental opening. Please note that the stainless steel bracelet should always be adjusted by a competent watchmaker.”

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
> Quick-change date push-button at 10h on case side
> Dial: Hands and indexes in Super-LumiNova®
> 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, 316L stainless steel beads of rice, OW S-Type Mark II
> Packaging: Leather origin Great Britain, Italian Kraft paper
> Warranty: 3 years against any manufacturing defect

* FREE GIFT: Do you want to get a feel of how these watches were usually worn in the 1960’s? We will include a vintage NATO strap as a free gift with the purchase of this watch. These NATOs are slightly thinner and shorter than modern NATOs. They are single-pass and have a super cool steel buckle that attaches to the strap with a loop. This way you can adjust the length of the strap in a way that the length will fit on your wrist exactly to your liking, with no unnecessary tail fold. As these straps are ultra rare, colour might be different from the one pictured in the last photo (according to our stock).

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