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Certified Pre-Owned Watch Program

1970's Vintage Oris Star ChronOris Chronograph Cal 725 Rare Orange Dial Watch

Regular price $999.99

Only 1 in stock

In the 1970's Oris introduced there first chronograph function watch the ChronOris. This watch does not have a minute counter, but do not worry, you can use the inner bezel to track of the minutes yourself as this rare version of orange/white bezel can be rotated using the crown at 3 O'Clock. Oris Cal 725 was designed and developed in conjunction with Dubois Depraz, the re-owned chronograph specialists. Production numbers for this watch seems to be 27,000 with two different cases, and different variant dials, which this is one of the rare of the bunch.

This is a beauty. It is very rare to find a watch this old with this dial. Defiantly a collector watch. Please look at all the pictures, as they are part of the description. The watch is working and great shape. This is a highly collectible watch. Very few left with this rare movement. Sure, to increase in value overtime, and a great addition to your collection. The condition of the watch is the same as it appears in the photos.  The watch is working  and is part of our new Certified Pre-Owned CPO Program. Contact me if you have any questions first.





Chromium plated case, brushed front and Stainless Steel Case Back.

Case Size

  37,40 mm without the crown, and 40,75mm Lug to lug (case is mostly lug less and wears clean)

Case Back

Stainless steel cover signed. Screw Back. Please note case back in most cases is not fully tighten.


Signed, First starts, stops, and rests chronograph. second rotates inner bezel, third sets time and date.


Acrylic Some Scratches, shows age, finger print, & characters. it has a rare date inner magnifier. 


Inner, 60 min orange with rare last 15 min white. rotating. 


Luminous hands & indices dial (orange has beautiful glow, even the inner ring, Swiss made Mark, chronograph and date at 3 O'clock. Shows light patina. Please see picture for more detail.


Seconds, Date, Chronograph, and Tachymeter


Manual-winding  Oris Cal 725

Movement Notes

Just inspected and in great shape. Please see pictures and as some old movements don't have a very clear marking. Movement is running. Keeps great time see below time testing.


Orange Nato.  Lug Size: 18mm      Please see picture.


Come with Beautiful Vintage Style Box. Or Experts Watches Pouch

Reference #


Made in


Water Resistance

No. Please pressure test before water use.

Service Level

   3   (Please see Tab below for details)

Timing Test **

+ 11 s/day  In-House Time Test Results (See Service Level Tab)**

Certified Pre-Owned

Passed 25-point inspection. Please see tab below for details.


3-Month Service Warranty (Please see Tab below for details)


All watch functions tested and operable.  Circa 1970's



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