Introduced in 1973, the caliber 1310 was Omega’s first in-house quartz movement, and it came with a few quirks: independent jump-hour setting using the crown, hacking seconds via a pusher at 2 o’clock, and date quickset.  The reference 196.0015 features a beefy 37 mm case, an integrated bracelet with solid links, and crisp silver dial with the famous Constellation logo. This is by far one of the best examples I’ve seen, and it’s essentially in NOS condition. This seems to be a rare version, as the dial is marked “Quartz” instead of “Megaquartz 32 KHz” like most watches. I’ve only seen two others with the same markings. While the watch has the original bracelet, part of the clasp seems to be aftermarket. **Condition:** Very good, almost NOS. Very minor markings on the bracelet near the clasp. The movement and its functions work flawlessly, although I don’t know its service history. Please see the pictures for full condition and clarity. **Case Size:** 37mm x 42.3mm stainless steel case with a thickness of 12.3mm and a lug width of 18mm (bracelet width is 27.3mm). **Crystal:** Mineral, no scratches. **Movement:** Omega 1310, quartz with jump-hour setting, hacking seconds, and quickset date. Service history is unknown, but all functions work perfectly. **Other Information:**  * Comes with the original stainless steel integrated bracelet. * The bracelet will fit a wrist of up to 6.75 inches (17.15 cm). **Price:** Asking $900. Please add $35 for worldwide shipping. Payment methods include Wise, ACH transfer, Revolut, Bitcoin (On-Chain or Lightning), or PayPal G&S for buyers with solid references. Add +7.5% for currency conversion fees on the latter. Portugal has suspended all shipments to the US, but I can still ship to other countries. Established seller with over 220 transactions – buy with confidence! Make sure to follow me on Instagram (@daily.worn) to check out the newest additions. Happy to answer serious inquiries. No trades, no lowballs. [Pictures](https://imgur.com/a/lXoqfbd) [Timestamp](https://imgur.com/a/oYf8ajs)