Founded in 1904, Oris is an independent watchmaker that’s not a member of any larger company or group. They’re based in Hölstein, Switzerland, with a secondary factory in the neighboring town of Holderbank. In 1970, they released the Chronoris, their very first chronograph.
At the 2017 Baselworld event, Oris announced a re-release of the Chronoris (Ref 01 733 7737 4054-07 5 19 45). As part of their motor sport collection, the Chronoris is designed for easy legibility under a variety of conditions.
Because they’re an official partner of the Williams F1 team, their motor sports watches are designed with feedback from real, professional drivers. Here’s what the Chronoris has to offer.
Oris 733 Movement
One of the Chronoris’ most outstanding features is the Oris 733 movement, which is a modified Sellita SW 200-1. It’s fully automatic, with a bi-directional rotor that provides constant power as long as it’s being worn. With 26 jewels, the 733 vibrates at a rate of 28,800 beats per hour, providing a smooth, constant motion for the second hand.
The 733 has a 38-hour power reserve, so you can easily set the watch aside for a day and not need to worry about its accuracy. In addition, the 733 provides for an instantaneous date window, so the date will always be centered within the window.
It’s also hacking, and has a date-correcting crown for easily skipping ahead when there are less than 31 days in the month.
The Oris Chronoris’ dial is a flat black, with a powder-coated, charcoal-like appearance. It’s ringed by an inner rotating bezel, which has a glossy finish that adds a nice accent.
The hour and minute hands are silver, so the main body of the dial blends into the watch face. However, they’re painted with Superluminova stripes, which makes it look like they’re floating over the dial. The stripes appear white in normal lighting, but have a blue-green glow in darkness. The second hand, meanwhile, is long and sharp, and is a bright burnt orange that really pops.
The index is marked with ultra-fine hashes that are positioned in 12-second increments. To make them easier to read, they alternate between a short and long length every minute, so you won’t get confused by a long row of identical, fine hashes.
The five-minute marks are indicated by larger, two-tone hashes that appear to be applied or embossed. The inner portion is white, with a blue-green Superluminova finish that’s identical to the stripes on the minute and hour hands. The hour portion is burnt orange, a perfect match for the second hand.
The inner rotating bezel has 120 clicks, allowing you to rotate it with extreme precision. It’s marked with white hashes at the minute marks, with small white numerals at the five-minute marks.
The bezel is designed to be used as a chronometer function. For sub-minute times, simply pull out the hacking crown when the second hand is at 12 o’clock, then press it in to start the timer. For times longer than a single minute, rotate the bezel until the 60-minute mark aligns with the minute hand. This way, you can easily read how many minutes have passed from the time you started.
Case, Crystal, and Strap
The Chronoris’ case measures 39mm in diameter, with smooth lugs that are a relatively slim 19mm apart. The wrist presence is medium, the watch sits nice and flat on your wrist due to the slim case.
It’s very comfortable to wear, with a moderate weight that doesn’t weigh down your arm. The front surface of the case is brushed in a sunburst pattern, radiating outwards from the crystal. Along the chamfer and the sides, the stainless steel is polished, providing an attractive accent when the watch is viewed from an oblique angle.
Since this is a super compressor dive watch it has two textured crowns, one located at the 2 o’clock position, and another located at the 4 o’clock position. The 2 o’clock crown is for time adjustment, and does not have a screw-down design. It is hacking, though, so when you pull it out, the second hand will stop rotating. The 4 o’clock screw-down crown operates the inner rotating bezel, allowing for easy use of the Chronoris’ chronometer function.
The Chronoris features a sapphire crystal, which is domed on both sides. When viewed from a 90-degree angle, there is no distortion whatsoever. However, when viewed from an angle, there’s a slight distortion that adds an interesting, attractive touch. The crystal’s outer surface is scratch-resistant, while the inner surface has an anti-reflective coating that reduces glare to a bare minimum.
The strap is dark brown leather, with decorative perforations near the lugs. The inner surface has a soft finish for comfort, while the outer surface has a more polished look. Near the lugs, the strap is reinforced by discreet stitching, and it’s secured with a simple stainless steel buckle.
This is a lovely watch that basically anyone should try on. For more specs and information you can visit the official Oris website here.