The watch features a robust 39mm Oyster case crafted from 904L Oystersteel (Rolex's proprietary stainless steel alloy).  It maintains a thickness of approximately 11.5mm and a lug-to-lug distance of roughly 47-48mm, ensuring it wears comfortably on a wide range of wrist sizes.  The case is water-resistant to 100 meters (330 feet) and includes a screw-down case back and a Twinlock double waterproofness system on the crown. 

• Bezel: Polished, domed steel bezel (distinct from the fluted bezels found on Datejust models). 

• Crystal: Scratch-resistant sapphire with a cyclops lens absent (due to no date function). 

• Bracelet: Fitted with the three-piece link Oyster bracelet and a folding Oysterclasp. 

• Lug Width: 20mm.

The movement is a Superlative Chronometer.  It features a free-sprung balance wheel with Microstella regulating screws, allowing for precise timing adjustments without a regulator index. 

• Caliber: 3132

• Type: Automatic, self-winding via Perpetual rotor

• Frequency: 28,800 vibrations per hour (4 Hz)

• Jewels: 31

• Power Reserve: Approximately 48 hours

• Diameter: 28.50 mm (standard) / 30.97 mm (including wider main plate variants)

• Functions: Central hours, minutes, seconds; hacking seconds

• Winding: Bi-directional self-winding; manual winding capable