DDM
136
I agree.
Something about the pure simplicity of the OP that’s very appealing. And like you, I have the 39 which is a perfect size and is so comfortable on the wrist. 
Throughout the summer, my go-to watch has been my Rolex Submariner; with due attention to my Panerai on the weekends.
Today, I switched to my Rolex OP 39 for the next few weeks. I love how this watch wears — very comfortable — good wrist presence in its own right. A Pelikan fountain pen peeking out in the background. ...
I agree.
Something about the pure simplicity of the OP that’s very appealing. And like you, I have the 39 which is a perfect size and is so comfortable on the wrist. ...
The red grape 39mm OP
Love it! Well played. The priices jumped on me before I could secure one. But have always loved this look. Cheers
Great reference
Why not have a roll call with all the dial colours? To me, it is a good successor to the Milgauss 1019 in terms of case volume (not considering the amagnetic properties of course) ...
I couldn’t agree more about the OP39. It’s one of the best all-arounders.
I need to wear mine more often because it’s a pleasure to wear. ...
The OP39 is the absolute definition of 'less is more'..
It's a handsome, versatile watch with just enough wrist presence to satisfy the owner while still maintaining a cool, 'under-the-radar' look and feel. I am lucky to own the blue-dial OP39 (from 2015-2016). It is an amazing watch!