Here's a very cool find for all those matching patina hunters out there. 

This is a 1970s dive watch from Nivrel, a Swiss watchmaking brand that succumbed to the quartz crisis of the 1980's. The lume plots, hands and bezel pearl holder all have developed a beautiful matching patina. The dial is glossy and shows some signs of patina across the surface.

The case measures 37mm excluding the crown, encasing a Felsa 4007N movement. Although the watch keeps good time a service is recommended as the date does not function.