K1012100 strap watch

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Good Price Leather Wristwatch Strap DZ1320_K0037982

Kxmas https://www.kxmas.com > products > good-price-leath...

Top Designer Rubber Watch Band Replacement MK8040_K0009966. $23.28 Regular price $34.24 On Sale.
US$24.79 · ‎In stock

https://www.google.com/search?q=diesel+dz1320+watch+strap+replacement

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Follow this link: Watch Straps Momentum Dubai Vintage Watches

I found a company in the u.k. www.watchbattery.co.uk, good price on Casio bands, pretty good shipping charges too.

A replacement watch band may cost as little as $10 and a replacement battery may cost as little as $2. However, if you do not have the right tools or do not feel comfortable performing this service by yourself, expect to pay $5-10 to have your battery changed by a professional. Band replacement may or may not be included in the band purchase price. Retail prices for most metal bands are higher than the price for lower-end leather bands, but premium leather bands may cost upwards of $20.
For the most reasonable price, try looking for a watch kiosk at your favorite shopping mall. Some Walmart jewelry counters will also provide this service. A full-service jewelery store should also be able to provide this service, though at a higher price.

Found a site where you can get a new timex ladies watch with white leather strap for $25...i think thats a great price. check it out.
http://www.amazon.com/Timex-Womens-T2H391-Reader-Nurses/dp/B000ROGWI8

You probably will have to send it away to get sorted (make sure you send it insured and very well protected).
You should contact cerruti to see who the repair shop is in the UK, (not sure they have one.)
Failing that you may be able to buy a replacement strap of ebay and have a general watch shop change strap for you.
Or find a jewellers that sell straps, they should have one that fits.

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Try calling 310 734 0520. They should have what you need. You might not like the price though.

If you want to pay the premium for an Ebel strap then any Ebel dealer or an online source can provide that.
For a much more reasonable price, I would try a store that sells AND installs watch straps. Usually, only independant jewelers both sell and install these.