The NOMOS Orion 33 Rose 315 is an elegant closed-back variant of its smaller rose-dial counterpart, featuring a stainless steel case measuring 32.8mm in width. This particular model showcases a rose-toned silver-plated dial complemented by gold-colored hands and operates with manual winding. The design leans into a more muted tone compared to the traditional white silver-plated Orion styles, while maintaining the recognizable compact Orion case format.

The case's dimensions include 32.8mm in diameter, a height of 7.6mm, and a lug-to-lug measurement of 42.3mm. It is topped with a domed sapphire crystal and has a closed stainless steel back. Characteristic of the Orion collection, the case features a softly rounded, lenticular shape, tapered lugs, and a curved crystal. It now boasts improved water resistance rated at 5 atm, up from the previous rating of 3 atm. The dial is galvanized in rose and includes fine hour markers along with a recessed small seconds display at the 6 o'clock position. Powering the watch is the NOMOS DUW 4001, an in-house manually wound caliber, which measures 10 ½ lignes in diameter and 2.6mm in height, featuring 17 jewels and a power reserve of up to 53 hours. Previous iterations of this model were equipped with the Alpha caliber. It comes with a 17mm beige vegan velour strap.