6152 Case Project (available late summer 2017)

Progress Stages

April 9th 2017: 3D Case print made (stage 2). (satisfactory case shape)
April 2017: Calculating Internal Dimensions, CAD under construction
March 2017:  First 3D Case Print made Lug shape and size adjusted
March 2017:  Outer Case designed, 3D CAD produced
July 2016: CAD works starts but not completed (more accurate info required)
Feb 2016: Plans made to restart the 6152 Case

The 6152 New Case Project has been under development for over a year. Most of the time was spent gathering as much factual information as possible. The first batch of Cases are scheduled for summer 2017.

Type of Cases: The 6152 will be available with and without a Crown Guard

Follow this thread for further updates.

Below: early prototype (Feb 2017), the case has since been modified

3646 Type C or Type D – symmetrical or non-symmetrical case shape?

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There are two types of 3646 Case Main Bodies to consider when building a 3646 Project.

Types A,B and C:  The early Cases Type A, B, and C were non- symmetrical although I am informed that a few Type C were symmetrical. This means that the shape on the top of the Case is not the same as the bottom. The bottom of these cases are usually a little more flatter than the top. This case available on the Vintage Watch Parts website, its known as the Standard Bezel Case or Type C.

Type D,E,F,G:  These Cases were symmetrical, the top of the case is the same as the bottom although there is still a top and bottom to the case as the machined surface for the Bezel and the Case Back varies slightly. This case is also available on the Vintage Watch Parts website, its know as the Tall Bezel Case or Type D.

Lug Holes:  Lug Holes are "without internal bores" this means the lug holes are not drilled through the case but about half way through. I believe this was to ensure the Cases stayed water tight. The Lug Bars are 1.8mm thick, and are now formed on a small jig to ensure the radius of each curve are the same.

The images below show the various Case Shapes, both symmetrical and non symmetrical.



Out of production and not available. This image shows one of the last EGI's to be built using an 8 day Angelus 240 cal.

Below: The last of the last. The final batch of EGI cases being converted to take the 3 Piece Dial with Angelus 240 cal movement.

Below: One big improvement was to convert to large screw-in type lug bars. The cases were threaded on one side and a set of Stainless Steel Bars were made. The Lug Bar holes in the case were moved back so that the leather strap didn't rub against the case (a previous design fault).

Below: many problems to solve, the first problem was how to get the thicker Angelus Movement to fit inside the case with a 2mm thick 3 Piece Dial. Quite a few parts had to be specially made.

Below: The first attempt at getting the Movement and Dial to fit

Below: Getting the movement and dial inside the case is easy, getting everything to align, for example the stem through the stem tube with the Case Back in place isn't as easy as it looks.

Below: It works, everything aligns, there are no rattles and nothing is under pressure or stress.

Below: Shows some epoxy being mixed with lume to form the luminous marker dot you see on the bezel (better shown is the next but one image).

Below: The lume is bright and also note the marker "dot" on the bezel

Below: One EGI was built with a copper dial

Below: How much ageing was up to you. Cases were aged differently, some heavily aged and some aged but with polished areas around the bezel.







New 3 Piece Dials (2017)

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Scheduled for Spring 2017: The first batch of new dials should arrive late April 2017. Instead of updating existing these dials have been made from new. What to expect.

  1. More accurate indices
  2. Indices inner edge machine finish (see image below)
  3. More accurate fonts (twin type font)
  4. New clear tight indices (see image below)
  5. New Mid Section Plexi as used on the genuine dials
  6. Better textured finish
  7. Improved colour shade
  8. More accurate sizes (NOT the same size as current dials)


The dial finish will be improved with better surface treatments and more accurate anodized colour shade. Below shows a microscopic image of the surface treatment.

Below: An early prototype shows super clear indices, this will be available on all dials.

Below: Is a microscope image showing a very small printed single letter (font size 3). The indices are clear enough to show the dots within the letter. When viewed with the eye this font looks straight (no dots visible). The purpose is to show the clarity of the dial resin.

Below: Some dials (6152 types) will be machined with visible metal edges around the indices as shown below in the Number 3

Below: Checking the resin indices (prototype dial)

Below: Prototype dial construction

Below: shows part of a hidden Mid Section Dial Plexi.

To be updated