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MEKOTRIN · Rotating case-back tool

MEKOTRIN 5700 Bench Case-Back Opening System

A bench frame with an adjustable holder, grooved rings and interchangeable opening jaws.

Match the exact groove or contact geometry; a named watch family is not proof of fit for an individual case.

$93.69Nov 6, 26, 08:03 PM · New York
Price info

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Your tool list ↗
  • Frame/system label 5700
  • Support receiver Adjustable watch holder No.5674
  • Opening receiver Removable/adjustable pawl holder No.5675

The physical equipment

Construction & package details

Support receiver

Adjustable watch holder No.5674

Opening receiver

Removable/adjustable pawl holder No.5675

Construction

Steel-aluminum

What this choice changes

Compare a supported opening system with a handheld wrench

The MEKOTRIN 5700 brings a supporting holder and case-back engagement parts into one bench arrangement. It is the more involved choice to compare with a handheld three-point wrench when the setup itself matters: the case support and opening receiver are separate elements of the system, rather than a single tool held over the back.

The assortment contains different groups of components. The seller lists six grooved rings or chucks, twelve fixing molds, twelve opening jaws and four screws, alongside the No. 5674 holder, No. 5675 jaw holder, conversion adapter and two lug-support blocks. These parts have different jobs. Choose the system by the engagement you need and the actual case support, not by adding their counts into one advertised number of opening sizes.

The largest stated chuck opening is 65 mm, the grooved-ring labels run from 18.5 to 29.5 mm, and the lug-block label is 6–22 mm. Those measurements describe different interfaces and cannot substitute for one another. Likewise, the 5700 designation does not establish that another maker’s dies or a particular branded watch will fit. Confirm the exact back profile and each receiving interface before buying replacement parts.

The illustrated frame is 30 cm high with a 25 × 11 cm base plan. Those outside dimensions help you plan bench space, but do not describe pressing stroke or working clearance. If you only need to support a case for an opener you already own, the separate Dofover or Joyzan holders are simpler offerings to compare.

  • Separate support and opening receivers are supplied within one bench system.
  • Six grooved rings, fixing molds and opening jaws provide different engagement components to match to a compatible screw-in back.

Specifications & supplied details

Documented details for this reference
DetailListed specification
Frame/system label5700
Support receiverAdjustable watch holder No.5674
Opening receiverRemovable/adjustable pawl holder No.5675
Grooved ring labels18.5, 20.2, 22.5, 26.5, 28.3 and 29.5 mm
Maximum chuck opening65 mm
Lug-block label range6–22 mm
ConstructionSteel-aluminum
Illustrated overall frame/base dimensions30 cm height; 25 × 11 cm base plan; 2 cm base height

Check the working requirements

Back engagement

Match the exact groove or contact geometry; a named watch family is not proof of fit for an individual case.

Receiver interfaces

Check support, jaw holder and adapter interfaces individually before assuming compatibility with another maker’s 5700 parts.

Bench space

Use the 30 cm frame height and 25 × 11 cm base plan for space planning, not as usable working clearance.

Limits to keep with the choice

  • No universal compatibility with named watch brands or other makers’ numbered parts.
  • Frame and base dimensions do not establish stroke, force or usable clearance.

Questions before you choose

Which dimensions should I check against my watch?

Check the part that will actually engage or support it. The seller states a maximum chuck opening of 65 mm; the six grooved rings are labeled 18.5, 20.2, 22.5, 26.5, 28.3 and 29.5 mm, and the lug blocks are labeled 6–22 mm. Match the back profile, ring engagement and lug support separately rather than choosing by the largest number.

Should I buy this if I already have a suitable opener?

Compare a standalone case holder first if support is the only missing part of your setup. This system also supplies a frame, opening receiver and multiple engagement components.

Can I use another maker’s 5700 dies?

The system designation alone does not establish interchangeability. Check the actual receiver and die dimensions before choosing cross-brand replacements.

Guides for this choice

Alternatives for a comparable task

Other equipment to consider

Selected listing descriptions, specifications and source images were compared for this reference. No hands-on trial is claimed. Product identifier: B0GXPZ8KN4.