Zenith Bumper Automatic Cal.133.8 9ct c1954
100% Genuine & All Original
Fully Inspected, Serviced and Guaranteed
A Beautifully Well Cared For and Lightly Used Example
Good Size 35mm case, Excluding the Correct Unsigned Crown
Superb 9ct Yellow Gold Gold Zenith Swiss Made Fully Signed Case
Original, Unrestored Light Coffee Dial with Original Unrestored ‘Lance’ Hands
Wonderful Calibre 133.8, 20 Jewel, High-Grade Bumper Automatic Movement
Black Alligator Strap with Plain Gold Plated Buckle
All in Absolutely Top Grade & Simply Wonderful Condition
VGWL 12 Months’ Written Warranty Included*
VGWL Lifetime Authenticity Guarantee
Original Zenith Presentation Box Included, as Shown
Free Worldwide FedEx Delivery
Free UK Special Delivery
Zenith is one of the oldest watch manufacturers, est.1865 and one of only a handful which has always produced its own movements. The company has an almost unparalleled record of technical achievements and notably, in 1929, Zenith won world renown at Kew Observatory (England), when a Zenith wristwatch won first prize for an accuracy of better than 0.6 seconds per day. During the late 1940s and throughout the 1950s, Zenith held the lead in producing the most commercially successful and technically advanced, chronograph wristwatches. Later, Zenith became the first in 1969, to develop a high-frequency automatic integrated column-wheel chronograph, powered by the legendary El Primero movement, beating at 36,000 vibrations per hour. This obsession with precision, as well as this constant quest for technical innovation, has been duly rewarded; the Manufacture has been awarded 2,333 chronometry prizes as well as eight medals, making it the most titled brand in the field of precision. The company has also provided a huge number of movements to many other manufacturers for their more technically advanced watches, including even Rolex for their Daytona Chronograph!
The 1950s saw Zenith produce some of the greatest watch movements available from any manufacturer. Zenith watch movements were incredibly advanced and the watch we have here is an excellent example, having a superb Swiss made 9ct yellow gold case and the Calibre 133.8 bumper automatic movement. This military style watch is completely original, unrestored and untouched, yet remains in outstanding condition with wonderful gentle signs of ageing as can be seen in the images.
The classic and beautifully styled light coffee dial has wonderful original mixed ‘stud’ hour indices with ‘2 – 4 – 6 – 8 – 10 – 12’ standard Arabic numerals, all matched with the original ‘lance’ hands. This is an impressive dial due to the contrast between the light coffee colour of the dial and the yellow gold of the case and dial furnishings. The dial is original and unrestored and has a wonderful, very even patina with a little light pitting and spotting, as can be seen in the images. However, we believe this adds a unique flare to this watch and looks beautiful on the wrist.
The dial carries the Zenith signature star and is signed ‘Zenith’ and ‘Automatic’ with ‘Swiss’ at the very bottom.
As mentioned above, this dial is original and unrestored and has been left untouched by our restoration team due to its superb condition. Usually, we restore the dials of the watches we sell, however we decided in this case to leave it alone, due to its unusually good condition and to retain its originality and charm for those who prefer this. It also helps to contrast with almost all of the other watch dials you see on our website, which have been restored. The hands, likewise, have also been left in their original untouched condition.
Please note, studio lights, professional-grade digital cameras, and macro lenses can be very unkind to an unrestored vintage watch dial. Also the dial here measures less than 1.25 inches across, so the image you’re seeing may be between 5 – 25 times larger than the watch itself. Therefore please keep in mind you are seeing many tiny flaws which cannot be seen, or will be very hard to see with the naked eye, even under close examination. Suffice to say, on the wrist, in natural light, this dial looks much better and carries a great deal more charm than the photographs portray.
The original Zenith Calibre 133.8, 20 Jewel bumper automatic movement is as clean as they come. It is also nicely finished with the Geneva wave as used on higher quality movements.
A bumper self-winding movement is wound by means of an oscillating rotor that travels through a 180-degree arc, being arrested by buffer springs that then bounce the rotor back in its original direction. The bounce can just be felt if one rotates the watch slowly from side to side, but in normal use, one is seldom conscious of its ‘pulse’. Indeed it is quite an endearing character of the vintage watch. These watch movements are robust, accurate and reliable making this watch perfectly suitable for both evening wear and everyday use.
This is the original movement, which as can be seen is in sparkling condition having just been fully overhauled and serviced by our Master Watchmaker. This involves complete disassembly of the entire watch movement, close inspection of all critical parts under high magnification and then replacement where necessary, using only original manufacturer parts. Then, lubrication using individually specified lubricants for differing parts of the movement and careful re-assembly before calibration and final testing.
The watch winds and sets smoothly and is currently keeping accurate time consistently to within 12 seconds per day! This is outstanding for any vintage watch of this age and has been tested on our electronic timegrapher. We therefore we have no hesitation in offering this watch with our 12 months warranty*.
The movement is signed ‘Zenith’, ‘Swiss Made’ and ‘20 Jewels’ and also carries the Calibre number 133.8.
*Please note – our 12 months’ warranty is only applicable if the list price is paid.
The Watch Case
The 9ct yellow gold, Zenith Swiss-made case measures a large 35mm, excluding the correct Zenith unsigned crown. The watch case has been professionally cleaned before being carefully inspected and very gently hand-polished, which was all that was required to bring it back to its current tip-top condition with no scratches, dings or other marks visible to the naked eye.
The inside of the case-back is simply signed ‘Zenith’ with ‘9K’ hallmarks. Externally, the case-back shows the serial number 435250.
Please note – our standard advice applies: Vintage watches should be kept clean and dry at all times.
The Strap and Buckle
The watch is fitted with a high quality black alligator strap and plain gold-plated buckle, which we feel suits the watch perfectly. However, if a different colour or different style of strap is preferred, please let us know and we will do our best to provide your choice, free of charge. We carry tan, conker, dark brown and black in stock in plain padded leather, crocodile skin or lizard skin and can also obtain most types and colours from our partners at ‘Watch Obsession’ within 48hrs. Please take a look at their huge range of straps if you wish here.
Box and Papers
Although there are no original papers with this watch, the reference numbers, markings, signatures and hallmarks are all correct, dating this watch to c1954.
Detailed particulars will be included with our purchase receipt for your interest and security. A separate insurance valuation for the replacement value of this watch will also be provided at the time of sale along with our unique ‘Lifetime Authenticity Guarantee’ which states: “If this watch proves to be anything less than 100% genuine, authentic and original, a full refund will be given at any time”.
The Original Zenith presentation box shown in the photographs is included.
If you would like to pay by bank transfer we will be pleased to assist you with this and pass on a 3% saving to you. Paying by bank transfer for a 3% saving will not affect your 12 months warranty. Similarly, if you wish to pay by International SWIFT or Bank Wire Transfer we will provide you with our BIC / Swift number and our IBAN number.
Please check the import duties and any taxes your government may apply, these are different for each country and unfortunately out of our control.
We understand there may be some ‘loopholes’ that may help you avoid these charges, however attempting to use these could impact our ongoing ability to serve our growing international customer base.
For those that happen to visit the UK on occasion we are of course more than happy to store your watch until we can meet you in our offices in Kensington, London, and deliver your watch directly to you there.
As with all our watches, this watch will be sold under our 14 days no quibble sale or return policy.
This is a very impressive and rare vintage Zenith bumper automatic wristwatch which is ready to wear and very practical for everyday use. If treated with care, this watch will make an excellent investment or heirloom piece. Zenith has always benefitted from a first class reputation for the superb quality of their watch movements and just as in the case of Longines, which have been undervalued in the past, this is beginning to show in the way Zenith watches are increasing in value.
A word on our prices – We always try our hardest to acquire the very highest quality watches we can find, before restoring them to the highest possible standards. We then offer these at the fairest prices we can, taking into account our pre and post-sales care and service. This approach means we will never be the cheapest, but nor will we be the most expensive. Indeed there are some well-known stores in West London which are highly successful charging between two to three times the price you see here. We, therefore, consider our prices to be fair, given the quality of watches we have to offer.
Please note, we also welcome part exchanges. If you have a watch or a small collection for sale, please contact us as we will be happy to discuss this.
We will also be happy to Service your watch, Repair your watch or Restore your watch, all at ‘sensible’ prices. Please see here.
If you have any questions please call us on 020 7727 7095 or if calling from overseas on +44 207 727 7095.
Please take a look at our other fine vintage gold watches.