Complications
Jocke - Bad Santa provides an in-depth look at the Rolex Microstella tool, essential for adjusting the balance wheel to maintain COSC standards. His detailed explanation, accompanied by clear photography, showcases both the older, oil-filled version and the newer tool, offering a rare glimpse into the precision mechanics behind Rolex's chronometric performance.
The Rolex Microstella Tool
The Microstella is Rolex system to adjust the balance wheel to make sure the watch
keep the COSC standard. To do that there is a special tool to adjust the screws with.
The old tool looks like this and it's oil filled to be a little more exact and stable.
At the backside there is graduation which means 1 second per day for each line.
A closer look to the tool.
Here we have a balance wheel with the Microstella screws.
Here is how it works.
A few pics of the tool in action.
The instuctions from Rolex.
And some pics of the new/current Microstella tool.
I always wondered what was this Microstella tool and how it worked, now I know! Thank youk Jocke, for this superb series of posts. Nicolas.
Great post Jocke so cool and well explained Awesome pictures of course Must say that old tool looks much cooler to me Best D
very informative post, is this micro stella commonly use in watch industry? say patek or lange. thanks for sharing best, Ed
so is it Rolex way to adjust the balance, ALS & PP do it in their own way.
Nice to know what it actually does. Thanks Jocke!
... thank you for the explanation and clear & great photography as usual to show the way it is employed to adjust the balance screws. Very cordially, Abel.
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