The Seamaster Chronostop is much larger than the Geneve model with the same movement, hence Jumbo. Model reference 145.007


From the serial number on the movement we can accurately date this watch to being made in 1968.


This Chronostop has the 17 jewel calibre 865 chronograph movement fitted, which is all working well. It is unusual in having a 60 second chronograph and no constant running seconds, and many owners will leave the chronograph hand ticking away until they need to use the stopwatch function. The design does leave the dial unclutters, but there is still quite a lot of detail on the dial. The inner section is dished, with applied hour markers (with slight corrosion) and the gaps between slightly discoloured, something we have seen regularly with this model. On the outside of the dial is a tachymetre scale. The hands, including the distinctive orange chrono hand, are all original. The crown is signed, as is the crystal with Ω logo. The case is unpolished, with the original graining clearly visible, but that also means there are a few marks that haven’t been polished out. The leather strap is new, and could be swapped for a different colour if preferred. The Chronostop Jumbo is an ideal watch for those who are used to the larger modern watches but want to try something vintage. The box has no inner cushion and is in quite poor cosmetic condition, but still better to have than not.

This watch will be supplied with the original 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 and should not be used without permission.


Width with crown 43.1 mm

Width without crown 40.9 mm

Between lugs 22 mm

Lug to lug length 47.1 mm

Case Thickness 13.1 mm

All sizes are approximate.

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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