I want to buy a 7751 movement, dial, hands, case, and band, and assemble my next watch. I have a Hamilton with a 7750 in it. It's about 100 parts if disassembled, and they need service about every half-decade (tear down, clean, lube, reassemble).
The Valjoux 7750 chronograph movement
21–23 of 23 posts
Re: The Valjoux 7750 chronograph movement
#22Slightly off-topic; but does anyone know legitimate reasons why Seiko spring-drive-like movements are either very expensive or don't exist? And any patents should have expired by now.
A spring-drive movement works by electro-magnetically braking and regulating a clockwork that is driven by a self-winding spring. The electro-magnetic brake is controlled by a quartz-clock. This means a watch with a smooth sweep, powerful drive, and quartz accuracy. It seems it would require fewer parts and less precision apart from the circuit itself, which shouldn't be too different from other quartz movements?
Re: The Valjoux 7750 chronograph movement
#23Slightly off-topic; but does anyone know legitimate reasons why Seiko spring-drive-like movements are either very expensive or don't exist? And any patents should have expired by now. A spring-drive movement works by electro-magnetically braking and regulating a clockwork that is driven by a self-winding spring. The electro-magnetic brake is controlled by a quartz-clock. This means a watch with a smooth sweep, powerf…
High-end watch people generally eschew quartz movements and anything resembling them. The occasional exceptions are for watches like the Omega Speedmaster X33 and Breitling Emergency, and even then many watch people don't want anything to do with them.
I simply don't think the market would support the investment needed to pump out these movements at scale for a new player.