Originally Posted by
walkerwek1958
Some of the above comments are true, othersd are less true.
To clarify, a quartz watch doesn`t need stripping and relubricating as frequently as a mechanical. There are less moving parts and they don`t move quickly, but eventually the lubricant dries up and the watch requires more current to run. Battery life shorten and eventually the watch stops. Ingress of dirt durinmg battery swaps will also cvause a quartz watch to stop, it only takes a fibre or piece of dirt in the wrong place and it'll stop. Servicing a quartz watch involves stripping, cleaning and reoiling, and ideally the circuit (containing all the electronic bits on a modern quartz) should be checked. This requires specialised equipment which many repairers won`t have. However, the best way to consider a circuit is to compare it to any other electronic item, eventually it will fail and the lifetime can vary hugely. Servicing the watch doesn`t affect the life of the circuit, so a freshly serviced watch could suffer a failed component on the circuit board shortly afterwards. I`ve serviced quartz watches on this basis, I can`t guarantee the circuit.
A watch with a dead circuit is a dead watch until a replacement can be sourced. Unfortunately they're not sold separately any longer so the movement needs replacing at a cost varying from £5 to expensive. The biggest worry is availability in the future.....or lack of! Some 70s/80s movements are no longer available and the watches are being kept running using second hand parts or new-old stock stuff. That's a less than ideal situation that's only heading one way and that's one reason why I only own 1 in a collection of 20 + watches.
In summary, a quartz watch SHOULD run for 10-15 years without needing attention (other than batteries), it'll then need service but there's no telling how long the circuit will last. Ironically, the longer it lasts the greater the risk that a replacement won`t be available because it's obsolete.
If a mechanical watch gets serviced every 5-7 years it should last a long time, needing only a new mainspring and barrel. I service automatics that are older than me (1950s!) and I can usually get them running well, albeit needing few parts if they've not been serviced regularly (most haven`t).
There's also another factor: even if a mechanical watch isn`t running as well as it did from new it can usually be made to run reliably and give a very acceptable performance; compare and contrast with the dead quartz watch with a failed circuit and obsolete movement.
Hope that helps. It's swings and roundabouts up to a point, a quartz watch should only need batteries for a lengthy period, but a mechanical will need service after (say) 7 years. On the other hand, the automatic is almost certain to keep running indefinitely with a bit of TLC.
Paul