Crown for ladies Sekonda

[rossjackson01]

Hello again

I'm having a great time. Just put 5 batteries into 5 ladies watches. Simple I know, but I'm a beginner, for me its a great thing.

However, one of the watches, her favourite, is a mechanical Sekonda. It has no crown. Can anyone give me advice on where to purchase a replacement?  The back stamp reads 849907. In fact, any information would be appreciated.

I have attached photographs

Regards

Ross

[WatchMaker]

Fortunately this is straightforward too.

I believe the movement in these lady Sekondas is a Chaika 1601A : https://17jewels.info/movements/c/chaika/chaika-1601a/

As such this should have a 0.90mm diameter stem size (also referred to as Tap 9).

On the assumption you're fine to have a replacement crown that looks similar then just search for a term like 0.90 crown on ebay and take your pick (or look on Cousins etc.). Be aware of other dimensions like height and width too. Circa 5mm diameter is typical for a small watch like this. [But ask the owner ... if they found the original crown a bit small and have a preferred crown size then no reason you can't match that].

With the stem pushed in just mark with a felt tip the protrusion from the case.

Take the back of the watch off and remove the stem. This looks fine and intact from your pics. You'll do this by pulling the stem out to the time change position. Now, whilst applying light pulling pressure on the stem, loosen the stem release screw. This is the very small screw on the left in the movement picture from the URL above. It's usually a 'turn and a bit' before the stem is released but I'm giving you the apply light pressure tip as you don't want to unscrew more than necessary and too far as that's then a dial off situation to reseat the screw!

Now screw the crown on the stem. Ideally you want a drop of Loctite on the end (but superglue will do) so the crown isn't lost again. Don't screw beyond your felt tip mark though (assuming your replacement crown might not be identical to the original).

Now put the stem with crown back in position and tighten back up the stem release screw.

That's it! Happy days!