Omega Seamaster Chronostop 145.007 Review
Vintage

Omega Seamaster Chronostop 145.007 Review

By Caius · Oct 10, 2008 · 21 replies
Caius
WPS member · Omega forum
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Caius provides a detailed review of his Omega Seamaster Chronostop ref. 145.007, a vintage sports watch from the late 1960s. His post highlights the restoration process of this unique mono-pusher chronograph, offering valuable insights into bringing a well-worn vintage piece back to its original glory. This article is a testament to the enduring appeal and restorable nature of Omega's historical timepieces.

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Greeting to you reader!

Here is a review of my Omega Seamaster Chronostop ref 145.007.

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Small step backwards ...
The range Chronostop dates from the end of the sixties. It represents sport watches with a capacity to time short time by a stopwatch "mono-poussoir".

There were two ranges, Seamasters (in aquatic vocation as mine, 120 metres) and Geneves (in earth vocation).

here are two types of calibres in Chronostops, 865 and 920.
I am not a wholesale trade techos, but my stopwatch is motorized by 865, which is other than celebrates it 861 "amputated", I like this qualifier not too much, therefore say "simplified".

The 865:
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Fast-forward, and return in today...

I bought, 3 months ago this watch:

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As you can see, it was very tired, no shine sun, not a good chrono hand but at the opening, the 865 was very nice.

I contact my friendly watchmaker to make a point. Not believing too much in the availability of parts, we attract by his intermediary to order at the Headquarters.

In 3 weeks, parts are here!

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To arrive at this result, movement was reviewed, brush all the case but no surplus, don't want it loses its history!

The big problem of the restoration of the case was the sun polish of the face. It need a very particular machine which does not have my watchmaker. But luckily and thanks to a relation, it found its aspect of origin.

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The watch:

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It sharpens 42mm, what brings a nice presence to the wrist. The case is typical of years 70 (although it is dated of 1966, it seems to me), forms barrel, polished sun on the face before, engrossments stop bright shine and satiny edges. Big plexi, miam miam...

"Poussoir" at two o'clock and a crown not screwed on at 4 am. This type of stopwatch uses in a very simple way since it is enough to trigger this one off by the "poussoir" at two o'clock and at the time of reading, to press this one without unloosing to perform reading on the tachy ladder. When they drop the t"poussoir", the hand returns to zero.

The caseback is typical of Omega of this epoch, as Seamaster 300 and it's the original, with the horse and the indication of waterproof quality announced in 120m.

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To finish the watch, he needed a strap nice and after debate with my clockmaker, we decided to put back the orange key of the needle of the stopwatch on the bracelet. I saw it definitely racing type, why of the opening in the black calf and to finish it, a nice buckle.

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You pointed out both passers-by, black and one orange... The big class!

And the WS:

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Conclusion:
This stopwatch is really nice comparatively imposing coach for a vintage watch. Not expensive and exotic but most are in bad condition!

Best

Caius

About the Omega Ref. Seamaster300

The Seamaster 300 reference is a re-edition that draws inspiration from Omega's historical dive watches. It is characterized by its robust construction and design elements that pay homage to early professional timepieces, while incorporating modern watchmaking advancements. This reference is positioned as a contemporary interpretation for enthusiasts who appreciate vintage aesthetics combined with current performance standards.

This particular Seamaster 300 features a stainless steel case, typically measuring 41 mm in diameter. It is equipped with an automatic movement, often a Master Co-Axial caliber, providing a substantial power reserve. The watch is fitted with a domed sapphire crystal, contributing to its vintage appearance while offering enhanced scratch resistance. Its construction ensures a high degree of water resistance suitable for aquatic activities.

For collectors, this reference appeals to those seeking a blend of historical design and modern technical specifications. It represents Omega's commitment to its heritage while offering a reliable and well-engineered timepiece. The Seamaster 300 is a significant part of the brand's contemporary collection, offering a distinct alternative to other models within the Seamaster family.

Specifications

Caliber
Omega 8400
Case
Stainless steel
Diameter
41 mm
Dial
Black
Water Resist.
300m
Crystal
Domed sapphire

Key Points from the Discussion

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The Discussion
DR
Dr No
Oct 10, 2008
Restoring a vintage Omega . . .

. . . is a rewarding experience that I've been thru myself a few times, Caius. My compliments on your strap selection, which perfectly matches the watch . . . most tasteful. Cordially, Art

BI
Bill Sohne
Oct 10, 2008
The reason you find all the Chronostops beaten up ...

Hi Caius First great post and photos !!! The Chronostops was a very popular model for Omega and the most important part was they were USED !! Your comment "....but most are in bad condition!" is in line which what I have observed over the years. I have seen them used "HARD and put to bed wet !!" a true tool watch. The 865 as you stated is based on the 861. You have a great movement in a rugged steel Omega case.. a great combo! Havev a great weekend BIll Sohne

AM
amanico
Oct 10, 2008
That's a great review; Caius!

Informative, nice text , cool pics and a lovely Vintage Omega SM! It now looks like a NOS! Congrats, too, for the strap! It complements very well the watch, by its stlye and this small touch of Orange. Best, Caius! Nicolas

CA
cazalea
Oct 11, 2008
Nicely done! Could he tackle mine next??

I am happy to hear that the slightly battered condition of my Chronostop appears to be the norm, rather than the exception. It's a great treat to wear it inside the wrist and glance at it sideways - can anyone tell me where the sideways configuration came from? Congratulations on your watch's revival! Mike

CA
Caius
Oct 12, 2008
About your watch...

This sideway configuration it's for simplify reading when you drive a car. Beautiful watch, exotic one in top condition.

CA
cazalea
Oct 14, 2008
I found a couple more photos, one of the movement

Here it is. Wow the movement is very nice - I hadn't remembered getting this picture from my watchmaker. I can see now the differences with yours being the "sea diving" model and mine being the "land driving" version. And this has the 920 movement, from the markings under the balance. Because the number is higher, does it mean it's a later version, or is it an entirely different base caliber? Thanks for the info and for reminding me about this watch. Cheers Mike This message has been edited by c

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