What model of battery inside nautica A20051G

Nearly always, Nautica watches have a screw-down caseback. This is best opened using a case tool that provides at least three points for rotation of the caseback. Look up watch case back tool on amazon. Avoid the tools that have only two points.

Dale, Google search your make and model # to find watch value.
I found no nautica watches with that exact outside dial. Check the attached links,instruction and guides, Good luck
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Amazon ca watch nautica men Watches
http://nauticawatches.com/
Metal Bracelet
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NAUTICA REPLACMENT BAND http://www.ebay.com/sch/bluss_929/m.html?item=221597748969&ssPageName=STRK%3AMESELX%3AIT&rt=nc&_trksid=p2047675.l2562 Items for sale from bluss 929

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try calling the local nautica service center. here is the link to find them. http://www.nauticawatches.com/service

This is a proprietary fit band. Only the manufacturer carries the band. You will want to contact Nautica's watch department customer service directly at:

[email protected]

Nautica watches are produced by Timex, so this is the correct email.

Specify the model number, serial number, band number (if you see one on the reverse) and request price and availability for the band.

If the band is not available, they may be willing to offer you a new watch as replacement.

The only place you can get a replacement Nautica band is through Nautica. Here is a link to get you where you need to be:

http://www.nauticawatches.com/service

Best of luck to you.

hello
i have hour nautica ... number A29506.. i wants to change date ... please tell me how to chenge .. maybe you write in my e-mail
[email protected]
tthenks..