UNIFIX XXL Watch Case Holder 30 to 68 mm

Watch Case Holder 30 - 68 mm UNIFIX XXL is a professional watchmaker tool designed for the demanding watchmaking workshop. Whether you service a Rolex, an Omega or an entry-level Seiko, this accessory delivers the precision, the grip and the durability you expect from a serious bench tool. Manufactured to withstand intensive use, it earns a permanent place on the bench of every watchmaker, restorer and informed enthusiast.

Product overview

This XXL UNIFIX BIG case holder is the reference accessory for servicing large modern watches, from oversized dive watches to chronographs whose case diameter exceeds the range of a standard holder. Four modular jaws cover a span from 30 to 68 mm and a semi-automatic quick-release mechanism saves precious seconds between each operation. The body is made of nickel-free stainless steel, a guarantee against allergies for the bench worker and against corrosion in a humid workshop. Whether you are opening the screw-back of a Rolex Submariner or stabilising the case of a vintage Seiko 6309 during a movement swap, this holder keeps the watch perfectly immobilised.

Used in a workshop alongside Bergeon screwdrivers, tweezers, a quality crystal press and a sturdy watch case holder, this watchmaker tool contributes to the kind of repeatable, controlled work that makes the difference between an amateur job and a professional service. It is equally relevant on a Rolex, an Omega Speedmaster or a Seiko 5, and it follows the dimensional and material standards (mm, HRC) that watchmaking schools across Europe teach.

Technical specifications

• Working range: 30 - 68 mm
• Notches: 4
• Material: steel inox sans nickel
• Release system: semi-automatique
• Brand: UNIFIX BIG

When to use it

Servicing oversized cases on a bare bench is the surest way to scratch a lug or twist a case-back. Reach for this holder whenever the diameter exceeds the limit of your standard support, before any battery change, gasket replacement, movement extraction or stem operation on a large watch. It is also the safest choice when working on screw-down case-backs that require firm counter-pressure with a Jaxa key.

How to use it

1. Place the holder on a clean bench mat with the jaws fully retracted.
2. Open the jaws by pressing the quick-release lever.
3. Insert the watch case face-down or face-up, depending on the operation.
4. Close the jaws around the case until the watch is held firmly but without point pressure.
5. Verify that the case-back is centred and accessible.
6. Carry out the operation (case-back opening, gasket replacement, movement service).
7. Press the quick-release to free the watch and store the holder.

Quality and origin

This UNIFIX BIG holder is built from nickel-free stainless steel for long-term resistance to corrosion and to the chemical agents present in lubricants and cleaning solvents. The modular jaws are machined to a tight fit so that the case is never marked by play between the parts. Designed for professional ateliers, it withstands daily intensive use without losing its precision.

Frequently asked questions

Is this tool compatible with all watch brands?

Yes, it follows the dimensional standards of Rolex, Omega, Seiko, Bergeon and most Swiss, Japanese and microbrand watches, as long as the diameter or fitting matches the indicated range.

Is the tool delivered ready to use?

Yes, the tool is delivered fully assembled. Simply wipe it with a soft cloth before the first use to remove any traces of protective oil.

Do you ship internationally?

Yes, our watchmaking accessories are shipped throughout Europe and internationally with tracked delivery from our warehouse.