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Zenith El Primero Chronometre Moonphase full servicing

Zenith ‘El Primero’ 410 CHRONO Moonphase full servicing Photos by Finn Marjoram Let’s review a nice example of the Zenith El Primero chronograph Cal. 410 – We’ll breakdown the full servicing process and some watchmaker pros and cons. We disassemble the whole movement to service. El Primero servicing cons – Too many parts! Too may

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Repairing a Swiss Rolex Submariner Caliber 3130

Troubleshooting and Repair of the Automatic Winding Module Caliber 3130 We’ve got a worthy patient on the workbench. This watch is familiar and pleasant in every way. It’s a black Rolex Submariner (with no calendar), a member of an endangered ‘tool’ watch species – reliable, with minimal add-ons, great for any situation. Movement Troubleshooting, Rolex

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