Longines Ultra-Chrono Box Edition
This latest release by Longines can be traced back to 1968 when the original “Ultra-Chron Diver” was released with caliber 431 and a water-resistance of 200 meters. 
Now over half a century later they’ve reached into their back catalog to reintroduce this watch with a new caliber movement and an increased water-resistance. The new “Longines Ultra-Chron” comes in two different options within a special wooden box that also contains an extra strap.
The cushion shaped 43mm case is made of stainless-steel with brushed surfaces and casebands, and polished accents, for a well thought out mix of contrasts. It deviates a bit from the original because it was slightly smaller measuring in at only 42mm.
Mounted to the case is a unidirectional rotating bezel with sapphire insert and engraved with 60-minute scale in Super-LumiNova.
On the flip-side is a solid steel screw down caseback that has been engraved with shout-outs reading “Longines”, “ULTRA-CHRON”, and a symbol to highlight this collection.
It comes equipped with a screw-down crown and is all topped by a box sapphire crystal with anti-reflective coating on both sides. Water-resistance can reach up to 300 meters (984 feet).
Time is exhibited on a matte black dial with steel applied hour index markers, followed by a ring of white printed minute markings.
Overall this dial has a very grained texture rippling throughout its surface, which gives it a vintage vibe. Plus we see that Longines added an extra splash of color in the form of a red minute hand that also syncs up well with the red markings circling the bezel. A subtle touch that really enhances this watch's color-scheme.
The central rhodium-plated hands, hour index markers, and steel applied Ultra-Chrono logo have all been fitted with a luminescent filling, for an enhanced legibility.
Longines Ultra-Chrono Box Edition
The “Longines Ultra-Chrono Box Edition'' (References below) is powered by the self-winding mechanical movement, caliber L836.6 with 25 jewels and 36,000 vph. It comes equipped with a silicon spring and this watch is “Ultra-Chronometer” certified by Timelab Geneva. Power reserve can last up to 52 hours, when fully wound.
Mounted to the watch is the option of either a stainless-steel bracelet, secured by a double-safety folding clasp; or a brown leather strap, secured by a steel pin buckle. If you purchase any of the special wooden box editions, both include an additional black NATO strap made of recycled material. 
Although the wooden box editions are special, this watch will be part of a permanent collection.
For more up to date information visit the official Longines website here.
