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Originally retailing for around £1000, this watch represents significant value for money in the pre-owned market.

It operates at a good position in the modern watch market, being affordable, whilst maintaining the premium features which give you a quality tool watch, capable of taking on the world. You also have the movement quality coming from a Swatch Group brand.


A good affordable watch is the most important thing for any watch collector. You can’t wear vintage all the time, in all conditions!


It has a well-proportioned 41mm Stainless case, water resistance of up to 300m, Stainless Steel bracelet with double security folding clasp, integrated diving extension, a Longines cal 633 (based on an ETA 2824-2), aluminium unidirectional rotating bezel, screw-down crown and a sapphire crystal with anti-reflective coating.


The case has a satin brush finish as well as some polished aspects which plays nicely with the night.


The dial is very legiable with Super Luminova on the indexes, Arabic numerals and the wide silvered polished hands. This is balanced with a date window at 3 O’clock.

The dial is signed with only the necessary writing to make you aware of its movement, diver rating and Swiss construction.


With Warranty card, inner and outer box, instructions and spare links.

Warranty card from Ernest Jones, dated 13/05/2016.

Bracelet will fit a 7.5” wrist, but it has three spare links, which means it will fit any wrist size.


Full condition report below.

Please see the images as these compliment and aid the description provided below.



The dial has a black sunburst finish and It is in perfect condition.  



The hands are original. They are in perfect condition.



The crystal is the original Sapphire Crystal lens. It is in perfect condition.



The bezel is in good condition, it has some slight marks, but nothing clearly noticeable.



The crown is original. It is large and has a chunky edge which is easy to grip. It is a very nicely sized functional crown. It screws down as it should to protect from water.



The case is made from Stainless Steel and is in very good original condition with light surface scratching. It remains un-polished.



The case back is Stainless Steel and is in good condition. It has a couple of surface scratches associated with wear. It is signed with the Longines logo. It has the reference L3.642.4 with the serial number also engraved.


It is signed: Hydro Conquest, All Stainless Steel, Swiss Made, Water – Resistant.



The strap is the original Longines bracelet with the code L600123790

It is Stainless Steel and is in very good condition, with only light surface scratching.

The buckle has a divers extension. The strap fits a 7 ¼ inch wrist circumference, with 3 spare links and the divers extension. This means it will fit any wrist size.



The movement is a Longines L633, automatic movement with 25 jewels, with a hi-beat rate of 28,800 BPH and a 38 hour power reserve.


It has a daily gain of +6 seconds, with an amplitude of 300 degrees and a beat error of 0.2 m/s.


Case dimensions:

Case width: 41mm

Case width with crown guard: 44mm

Case width with crown: 45.5mm

Case length: 41mm

Case length lug to lug: 51mm

Lug width: 21mm

Case Depth: 12mm

2016 Longines Hydro Conquest Black dial bezel divers watch, L3.642.4 box papers

Out of Stock
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