QUOTE(zxeen @ Feb 7 2010, 06:22 PM)
hi, i'm new to the thread. i've got a 3 rado diastar and a omega constellation all inherited from my grandfather. should be circa 1970's model. i've got 2 questions to ask dear sifus:
1. the omega constellation backplate (i don't know what it's called- i'm referring the piece of metal at the back that you remove to get to the engine
) is fixed to the body with screws. the screws have now rotted and rusted inside. attempts to open damaged the screw heads even more. do you know of any master who have the tools to open it? the screws are rather delicate. one shop has proposed to hack open the backplate and seal back with silicone later. well NO WAY for me!
2. minor question: is there any risk of breaking anything by over-winding the crown?
i will upload pics when i have the chance.
Answers1. the omega constellation backplate (i don't know what it's called- i'm referring the piece of metal at the back that you remove to get to the engine
2. minor question: is there any risk of breaking anything by over-winding the crown?
i will upload pics when i have the chance.
1. I suggest you bring it to Swatch Group too. But be prepared to fork out big money. Last year, I sent my Vintage Seamaster Cal. 455 (Bumper movement) to them and they told me it has to be sent to Switzerland for procurement of parts and overhaul of the engine. The reason being is that the parts have to be handmade (as it is no longer in production) and the technicians here do not have the blueprint of the watch available on hand. The total bill came up to RM3,000. But it was worth it as it came back as good as new.
2. If it is a handwound watch, yes, absolutely. Overwinding the crown causes the spring connected to the winding stem to give way. When this happens, the crown will become stiff (unable to handwind anymore). Rule of thumb, wind the watch with your middle finger and thumb, when you feel a slight pressure, stop winding. Automatic watchs, on the other hand, have a mechanism that stop the watch from overwinding on the rotor (but only on the rotor and not the winding stem).
Feb 8 2010, 09:43 PM

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