Rolex Datejust Oystersteel all yellow gold

The Rolex triangle pattern is a distinctive feature of the brand's watches. At first, the triangular grooves on the oyster shaped outer ring had practical applications, helping to tighten and secure the outer ring onto the watch case, ensuring the waterproof performance of the watch.
The pit pattern design of the bottom cover is also based on the same considerations, and is tightened to the case position using specific Rolex tools. Later on, the triangular pit pattern evolved into an aesthetic design element, which can be regarded as a distinctive feature of Rolex. To this day, the triangular pattern has become a distinctive feature of brand watches, and the outer ring of this diary 36 is made of gold.