2026.07.04
Watch band major Nissei Seimitsu (headquartered in Kawaguchi City, Saitama Prefecture, securities code 7771) will build a new research and development (R&D) center at its Vietnamese subsidiary "Nissei Vietnam." It will set up a preparatory office in 2026, aiming for full-scale operation in 2027. This is a move to upgrade its Vietnam plant, which has so far handled low-cost production, from "a place that makes" to "a place that develops." The company is a long-established Japanese maker that has produced watch bands and sports goods locally in Ho Chi Minh City since 1994, and it is now redirecting more than 30 years of accumulated metalworking expertise toward local R&D. For mid-tier Japanese companies considering or already executing expansion into Vietnam, this case is worth reading as a "next move" beyond simply relocating a factory.
According to reports, Nissei Seimitsu will open an R&D center at its Vietnamese entity Nissei Vietnam. It will set up a preparatory office in 2026, aiming for full-scale operation in 2027. The aim is to improve quality by leveraging its accumulated metalworking technology and to develop new materials and processes. The company also plans to invest 70 million yen in automation at its Vietnam plant, shifting its focus from low-cost production to manufacturing higher-value-added products. It also indicated a policy of dividing roles with its Cambodia base (Nissei Cambodia, Bavet City) to spread production risk. The company has set a target of consolidated net sales of 10.5 billion yen and a consolidated operating margin of 12% or more for the fiscal year ending March 2031.
Nissei Seimitsu is a watch band and watch case parts maker founded in 1978, with a group workforce of about 1,714 (as of the end of March 2025). Its main products are watch bands and eyeglass frames, and its strengths lie in surface treatment technologies such as ion plating and DLC, as well as precision processing and finishing of metals including titanium alloys. It established Nissei Vietnam in March 1994 and began local production of watch bands that May and sports goods that October. In other words, Vietnam has functioned as the company's core manufacturing base for more than 30 years.
What this upgrade means is a decision to add "development functions" on top of that base. Under the conventional model, where design and new-process consideration are concentrated at the Japan head office and only manufacturing is placed overseas, it takes time for ideas born on the shop floor to be reflected in production. Placing development functions locally allows prototyping and verification to be run right in front of the production line. For parts like watch bands, fine-tuning surface treatment and automated assembly lines has a major effect on quality and yield. Placing development and manufacturing in the same location appears aimed at speeding up this improvement cycle.
| Item | Manufacturing base (conventional) | Base with R&D function (going forward) |
|---|---|---|
| Role of the base | Mass-producing head-office designs | Developing prototypes and new processes locally |
| Talent needed | Line workers, production management | Engineers, technical staff |
| Source of added value | Low-cost labor | Technology and improvement proposal capability |
| Relationship with head office | Waiting for instructions | Running development jointly |
This shift is not confined to Nissei Seimitsu alone. In back-end semiconductor processes and EV parts as well, moves by major players to reposition Vietnam from "assembly" to a "high-tech strategic base" are occurring one after another. Cases such as Samsung Electronics planning a semiconductor packaging plant in Vietnam under the banner of moving beyond an "assembly base," and Intel deciding on additional investment in its back-end base in Ho Chi Minh City, differ in scale but point in the same direction as Nissei Seimitsu. Companies are entering a stage of putting down technological roots locally, rather than relying solely on labor cost advantages.
Voices from Japanese manufacturers operating in Vietnam welcome such an upgrade. One manufacturing industry veteran with expatriate experience said, "The pool of local science and engineering talent is deepening year by year, and it would be a waste to assign them only simple tasks." Engineering and technical universities in Ho Chi Minh City and Hanoi produce many engineers every year, and a layer capable of handling development support and prototype evaluation is growing.
On the other hand, there are also cautious views about localizing R&D functions. How far to open up technical information such as drawings and processes to the local side, and how to protect intellectual property, are concerns that run deep, especially for mid-tier makers. "I want to entrust development, but I want to avoid the leakage of core technology" is a dilemma many people in charge of expansion voice. Nissei Seimitsu's approach of dividing roles with its Cambodia base to spread risk is one answer to this concern.
Expectations are also high on the hiring side. If excellent local talent can join a Japanese company as an engineer rather than as a factory worker, retention rates rise. Whether a company can offer well-paid technical positions locally is the deciding factor in attracting talent.
From Nissei Seimitsu's move, there are three points mid-tier Japanese companies should consider applying to themselves.
First, companies that already have a Vietnam plant have concrete room to consider the option of "adding development functions." Rather than building a new base from scratch, Nissei Seimitsu's approach of starting with a preparatory office at an already operating plant is a realistic way to add functions in stages while keeping the investment amount down. The scale of this round's automation investment, 70 million yen, is a level even mid-tier companies can decide on.
Second, if placing an R&D function, companies need to design local engineer hiring and the line for technical information disclosure together. Which processes to entrust to local development and which core technology to keep at the head office is a line that must be decided. If this line stays vague while only headcount increases, the expected improvement cycle will not actually turn. Nissei Seimitsu's approach of dividing roles between Vietnam and Cambodia shows the importance of deciding how to divide functions first.
Third, targets have reached the stage of being framed by "profit margin" rather than "volume." The operating margin target of 12% or more that Nissei Seimitsu has set is a level achievable only through higher value-added products, not through an extension of low-cost production. Whether a company can rewrite the purpose of its Vietnam expansion from "making cheaply" to "raising the profit margin" will determine its next investment decisions.
If this move spreads, the talent needs and positioning of bases for Japanese manufacturers expanding into Vietnam will change. Hiring will shift from being centered on line workers to including engineers. Structures will move toward placing a development manager locally, not just a plant manager. Such changes will also generate new demand for expansion support, consulting, and engineer recruitment services.
For Vietnam as well, foreign companies placing development functions locally leads to industrial upgrading, a shift from a mere assembly country to a country involved in design and development. If mid-tier Japanese makers ride this trend, they can hold a rational reason to maintain and strengthen their Vietnam bases even as labor costs rise. Conversely, companies that pursue only low cost without development functions risk seeing their base's raison d'etre fade as wages rise.
The move to elevate Vietnam beyond a purely manufacturing base is spreading not only among Japanese companies but across foreign capital as a whole. For the shift "from assembly to high-tech" in the semiconductor field, the case of Samsung Electronics building a $4 billion semiconductor packaging plant in Vietnam is a useful reference. The reality of large-scale investment in back-end bases is shown by the case of Intel making additional investment in Vietnam to build one of the world's largest back-end bases For the concrete scale and hiring plans of a mid-tier Japanese company's new plant, the case of Japan's Meiko breaking ground on an electronic circuit plant in Phu Tho Province serves as a point of reference.
Nissei Seimitsu's new R&D center is not a flashy, large-scale investment. Setting up a preparatory office in 2026, reaching full-scale operation in 2027, with an automation investment of 70 million yen — it is a modest, human-scale step. That is exactly why it is highly reproducible for mid-tier Japanese companies. As a next action, companies that already have a plant in Vietnam should first take stock internally of "what would change if we added a development function locally." Writing out which processes can be entrusted, which core technology should be kept, and how many engineers are needed will make the investment scale come into view. If the purpose of your Vietnam expansion is still stuck at "making cheaply," Nissei Seimitsu's move is a signal prompting a rethink.
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