Rado Centrix Series

Rado Centrix Series
Technical Specifications
Feature Specification
Brand / Series Rado Centrix Series
Model Reference 561.0940.3.070 (also labeled as R30940703)
Gender / Size Ladies’ (Size S)
Movement Type Swiss Mechanical Automatic (Self-winding)
Calibre / Engine Rado Calibre 561 (Base: ETA 2671)
Power Reserve Up to 38 hours
Jewels 25 Jewels
💎 Design & Materials
Feature Specification
Case Diameter 28 mm
Case Thickness 12 mm
Case Material Premium Stainless Steel
Dial Color Black
Hour Markers 4 Factory-Set Diamonds (located at the 3, 6, 9, and 12 o’clock positions)
Crystal / Glass Scratch-Resistant Sapphire Crystal
Case Back Exhibition / Transparent Sapphire Crystal (you can see the internal gears moving)
Bracelet / Band Stainless Steel with deployment clasp
🛠️ Functions & Extras
Feature Specification
Calendar Date display indicator at the 3 o’clock position
Water Resistance 30 meters / 3 Bar (Splash-resistant / rainproof; not for swimming)
Country of Origin Swiss Made

You can confirm autheticity via the Rado website, key in the code in this order and it will give you detailed features and its manual.
Link : https://service.rado.com/manuals-and-catalogue
Code : 561.0940.3.070,R30939703

In the manual, just after the OPERATING INSTRUCTIONS page there is this section , the watches caliber is 561 ( 561.0940.3.070 , R30939703 ) and as such its instructions are on page 48. The other calibers are different DiaStars

Reason for selling medical emergency