MORE (Minase Original Rebuilding Equation) Concept

Minase’s goal is to make watches that can be treasured for more than a hundred years … This is why they created and patented the MORE (Minase Original Rebuilding Equation) structure. The MORE structure, inspired by Japanese traditional wooden puzzles, allows all external parts to be assembled and disassembled like a wooden puzzle. Therefore, every part can be replaced individually, which extends product life and facilitates maintenance.

A design thought for permanent maintenance

For instance, a bracelet is generally completed by assembling segments and then pressing them from both sides. Such bracelets are robust, but cannot be disassembled in case of damage. On the other hand, Minase’s bracelets can be completely disassembled, offering the opportunity to repair or replace damaged parts.

Minase’s disassemblable bracelets

In general, disassemblable bracelets tend to become longer with use and time. This is one of the reasons why other manufacturers prefer not to use that kind of bracelets. However, Minase succeeded in creating disassemblable bracelets having appropriate play and high durability by taking advantage of their long expertise in precision machining and assembly. This was made possible by our expertise in precision machining as well as our highly skilled craftsmen. Indeed, Kyowa – Minase’s mother company – has been working in precision machining for over 35 years now, working for some of the most well-known watch brands in the world.

Precise handwork

Minase’s bracelets’ segments are handcut one by one by craftsmen. The reason the company does this, even though bracelet segments are usually cut by CNC machining, is to keep the lateral play of segments within 2/100 mm. It is difficult to fine-tune this amount of play by CNC machining, which inevitably results in inflexible bracelets.

Hidden screws to fix the bracelet

After being assembled, every segment is fastened with screws. Normally, segments are screwed from both sides. This is advantageous for productivity, but the screws may come off after prolonged use. Accordingly, the segments of Minase bracelets are designed to be fastened with Minase’s original screws from the back side. As the screws are hidden from the outside, the bracelets look neat and do not fall apart even when the screws come loose. In addition, each screw is fixed by applying a fixing agent. This is a time-consuming process that is not suitable for mass-production manufacturers.

Bracelets that last long

The play in a bracelet hole is 5/100 mm. This relatively large play is intended to prevent the generation of metal powder due to abrasion between a pipe and the bracelet. However, it results in a large play of the bracelet. Therefore, the clearance between the right and left segments is minimized in order to ensure durability.