How many times can you go back to the well" If you?re Seiko, and the well is the 62MAS, the answer, apparently, is as many times as you?d like. Or, six. By my rough count, that?s how many re-editions of the historically important Seiko diver we?ve seen since 2017, when they began to really lean into the iconography of their first professional dive watch with the SLA017 along with the SPB051, setting a template for both limited edition, higher priced versions of the 62MAS reedition for collectors, and a more value oriented approach for everyday watch enthusiasts, an approach that was arguably perfected with the SPB143 and its many, many variants. Now, just announced, Seiko has revealed a new re-edition of the 62MAS that might be the closest yet to the aesthetic of the original, with a higher end movement that brings the watch into luxury territory. 
The headline here is that the case size of the new SJE093 is the closest approximation yet to the original watch from 1965. It gets the diameter exactly right at 38mm, and, crucially, comes in at just 12.5mm thick. Those are nearly identical measurements to the original 62MAS, and a whole lot more slender than the reissues, and it?s thanks to a new caliber making its debut in this very watch. 

The new caliber is the 6L37, which shares an architecture with the 6L35, but has been upgraded to be more durable and resistant to shocks. Seiko says this caliber was made expressly for divers. The ?L? series movemen...