Seiko SKX013 Mod - low double dome Sapphire Crystal (Blue AR coating), Ceramic Bezel insert - Original Seiko 7S26 movement

This Seiko SKX013 was sent to me by a client. He had order all his parts from SeikoMods. The client wanted to change the crystal, insert & hands. The hands required a little work as they were sized for the SKX007/9 model and were a little to big for the dial / chapter ring.

Seiko SKX013 Mod – Crystal

The Crystal chosen by the client is a low double dome with blue AR coating. This is a sapphire crystal with the beveled edge.

Seiko SKX013 Mod - low double dome Sapphire Crystal (Blue AR coating) fitted to Seiko SKX013 case.
Seiko SKX013 Mod - low double dome Sapphire Crystal (Blue AR coating) fitted to Seiko SKX013 case.
Seiko SKX013 Mod - low double dome Sapphire Crystal (Blue AR coating) fitted to Seiko SKX013 case.

The crystals from SeikoMods are great. I have never experienced any problems fitting theses and you can reuse the original crystal gasket without any issues with water resistance – I have received some crystals from client specifically with the SKX013. These can bind up on the gasket and it can be a struggle to fit – If this is the case I use a fine wet stone to clean the leading edge of the crystal.

Seiko SKX013 – Hand Mods

The hands chosen for this Seiko SKX013 mod are the SKX007 /009 style hands. These are a tad big for this watch, not fitting inside the chapter ring.

Seiko SKX013 Mod - Hands removed and new hands to be cut and fitted.
Seiko SKX013 Mod - oversized hands - hour and minute hand fitted modified minute hand to fint inside chapter ring
Seiko SKX013 Mod - oversized hands - hour and modified minute hand fitted. Second hand on pinion before length removed from end to fit inside the chapter ring.

I have modified these hands to fit a Seiko SKX013 before. So, I was sure of the length to remove from the minute and second hand.

Bezel Insert – Mod

The ceramic insert mod a great upgrade you can make to your Seiko Diver. The ceramic insert is more hard wearing that the original.painted aluminum. Removing the original bezel insert is best done with a light solvent cleaner/remover.

Seiko SKX013 mod - Bezel insert removal -
Seiko SKX013 mod - case bezel and new insert displayed separately.
Seiko SKX013 mod - Fit new insert  with double sided bezel tape.

It is easiest to work on the bezel once it is removed form the watch – To remove the excess glue from the bezel more solvent remover and plastic scraper does the job. A clean with acetone to ensure there is no residue left behind. The sticky tape can be applied.

Seiko SKX013 mod - Seiko 7S26 movement in 7S26-0030 case

The was no movement service or upgrade requested for this mod, there was no need. The movement was in fantastic condition no noticeable wear and unlike a lot of Seiko’s I see. No mucky fingerprints!

Seiko SKX013 Mod - low double dome Sapphire Crystal (Blue AR coating), Ceramic Bezel insert - Original Seiko 7S26 movement

If you require help with your Seiko SKX013 Mod then please get in touch.

Categories: Seiko Mod

1 Comment

José M · April 12, 2021 at 10:21

Really satisfied with this mod! I wanted to improve the look of my SKX013 by retaining the Seiko aesthetic (and therefore keep a similar bezel insert and hands). The sapphire dome is a massive improvement and really suits the watch. The bezel insert makes everything look much sharper too, also with a lume pip that is more visible than the one that comes with the stock insert.

I am also very happy with Wellingtime’s adaptation of the watch hands. The 007 hands are noticeably bigger, but now fit in the case along with the chapter ring thanks to the adaptation that was made during the mod. They take some time getting used to, but in particular the lollipop seconds hand seem (to me) to be in much better harmony with the rest of the dial.

Anyway, very satisfied with this, especially with the rapidity with which the mod was made and sent back to me.

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