The Rolex Oyster Perpetual is one of the longest running models still in production by the brand. It shares many design similarities with the Datejust and Day-Date models. The biggest difference is the case size at only 34mm, as compared to the 36mm size of the Datejust & Day-Date models.

The Oyster Perpetual gets its name from Rolex's two most important innovations. The Oyster case design, which grants the watch its waterproofness, and the Perpetual automatic movement. Pairing this with its 34mm case size, the OP is wearable by everyone.

This watch is the Oyster Perpetual 1500 reference. The watch has had the original crystal replaced with a new aftermarket acrylic crystal. All of the original gaskets have been replaced, and the watch has been pressure tested to 5bar to ensure waterproofness.

- Ref No. : 1500
- Serial No./Year: 3489505-/-1973
- Case:
    34mm diameter, 19mm lug width, 11.5mm thickness, 39.75mm Lug-to-lug.
    Stainless Steel
- Crystal: Plexiglass/Acrylic
- Movement & Accuracy: 
    Caliber: Rolex Perpetual Cal. 1570
    Complications: Central Seconds, Long-Set Date Indicator
    Measured Accuracy: +0 sec/day.
    Amplitude: 227°
    Beat Rate: 19,800 A/h
- Band: Original Rolex Steel Bracelet. Will Fit Wrists ~ 7.25"
- Condition Rank: (B) Good Condition. Please See Photos and Condition Rank Guide
- Country of Manufacture: Switzerland

Condition Rank Guide:
-NOS: Item is in New Old Stock condition (NOS). Shows little to no signs of wear apart from some minor handling wear.
-A+: Item is in Excellent condition. Micro-scratches can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or scratches in the crystal.
-A: Item is in Very Good condition. Minor scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or deep scratches on the crystal.
-B: Item is in Good condition. Moderate scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. Minor pitting/gouges may be visible on the case. One or less deep scratches may be visible on the crystal. See photos.
-C: Item is in Fair condition. Heavy scratches and scuffs can be seen on sides of the case, bezel, and bracelet. Significant pitting or gouges are visible on the sides of the case and the crystal shows multiple deep scratches
-NR: Item is in Non-Running condition. Item is not functional. For parts or repair only.