The Hamilton Thinline models used monobloc cases to both improve water resistance and slim down the cases.  Model reference 4005.

HOW DO WE DATE THIS WATCH?

By comparing this watch to the ones in the excellent book Hamilton Watches: A Reference Guide ( by Bruce Shawkey) we can see the Thinline 4005 model, in 10k gold filled case and with Swiss grade 687  movement was in production between 1963 and 1965.  |We can not narrow the production date of this specific watch any closer than that, sow we opted for circa 1964.

CONDITION

The most noticeable thing with this model Thinline is the etched patterned bezel.  Being gold filled rather than gold plated, the wear is minimal – gold filled is far thicker than gold plating.  The dial is original but does have some patina, and we have taken a photo of the watch outside of the case so you can see the patina clearly without reflections.  The monobloc case does mean the movement is tucked behind the crystal, and while it is a little more difficult to access than a two or three piece case no watchmaker should struggle.  The movement is all working well, and is wound via the signed crown.  Originally the watch will have come on a stretchy bracelet, but that has been lost over the years and we have fitted a blue leather strap.  This could be swapped for a different colour or material if preferred.  The watch is signed on the dial, case, movement,  and crown.

This watch will be supplied with our branded presentation box and our Certificate of Authenticity.

Please see the HD video for more detail.  All photos and videos are part of the description and are of the actual watch unless mentioned.  We do not photoshop any pictures, and the images are copyright of birthyearwatches.com and should not be used without permission.

​SIZE

Width with crown  34.2 mm

Width without crown  32.5 mm

Between lugs  17.5 mm

Lug to lug length  36.5 mm

Case Thickness  8.1 mm

All sizes are approximate.  The watch is photographed on a wrist of 190mm/7.5 inches.

Included with this watch is a 3 month guarantee and free delivery to UK addresses.  If you live outside the UK we can still deliver to most countries.  Please see our Worldwide Shipping information, or Contact Us.   Payment can be made by most credit or debit cards, bank transfer or PayPal.

From 1st September 2021 we will be planting a tree for every watch we sell, working with the International Tree Foundation (Est 1922) to make this business positive on carbon.  By buying anything pre owned you are effectively reusing what already exists, but this takes it further and makes us feel good.

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