Simple yet Distinctive

PROMASTER DIVER 200m GMT

https://ms.citizen.jp/assets/IMG0206-04_re のコピー

2025.05.21

PROMASTER is a brand for professionals on land, at sea, and in the air. In particular, diver's watches, which are designed for sea professionals, must meet strict standards set by ISO 6425, including high water resistance, a unidirectional bezel, visibility in the dark, and shock resistance.

The product introduced here was born from the family model project of the 'PROMASTER AQUALAND 200m,' which was released last year to great acclaim. While inheriting the case lines and rotating bezel design, this ISO-compliant 200m water-resistant diver's watch adds new value with a GMT function and titanium material. In addition to the PROMASTER mission of functionality, durability, and safety, the watch was developed with a focus on the visibility and operability most needed in a diver's watch, and it won the Good Design Award in 2019.

Maximizing the features of the movement

Accent colors are used for the 'GMT' and '24' markings and the triangle at the tip of the 24-hour hand, further highlighting the characteristics of this movement. Additionally, by taking advantage of the structurally thicker condition created by the four central hands (hour, minute, second, and GMT) and the internal lens on the glass, the indicator ring is designed with two differently angled slopes, expressing a sense of depth reminiscent of the ocean.

Operability designed for real-world scenarios

The rotating bezel is made thicker for easier grip and turning, considering operability while wearing diving gloves, and features vertically cut mountain-shaped edges on the outer rim.

Visibility in the dark

Although the GMT function can also be used for dual time, to prevent confusion with the current time while diving, the 24-hour hand does not have luminescence, which enhances visibility in the dark.

Safety

To reduce the risk of the watch accidentally coming off and falling underwater, a double-locking buckle is used to enhance safety.

undefined

This diver's watch is designed to meet the needs of both extremes: it may be used in the harshest conditions, but it is also a popular style choice, often worn outside of diving situations. This product was created after careful consideration of how to meet both demands. While fulfilling the professional requirements of functionality, durability, safety, visibility, and operability, its simple design and refreshing blue and white combination make it stand out for everyday urban use as well.

2019 Good Design Award Winner Evaluation Comments

The product is meticulously crafted. The dial features a two-step incline to create a sense of depth, and a magnifying lens for the date display is set inside the glass, utilizing that space. Having no protrusions on the watch glass surface not only gives a clean appearance but also helps prevent scratches from catching on clothing. Including the use of Super Titanium™️ with enhanced surface hardness for the exterior, every detail is carefully considered so that many people can use this watch for a long time. Despite being equipped with advanced technology such as light-powered Eco-Drive, the price is kept reasonable, making it accessible to many users, which was also highly regarded by the judges.

WATCH

CREDIT

https://ms.citizen.jp/assets/ryuji-tonohori

Product Designer & Writer

Ryuji Tonobori

RELATED

https://ms.citizen.jp/assets/IMG0213-06_re のコピー

Simplicity in Many Functions

The PROMASTER AQUALAND is a diver's watch series equipped with a depth gauge. Under the concept of creating a diver's watch that embodies both the 'inheritance' and 'evolution' of AQUALAND, we revisited the fundamental concept of PROMASTER and developed a genuine diver's watch that expresses many functions in a simple way. In a broad market where minimal designer watches and impact-focused designs coexist, this model can be called a new standard, thoroughly pursuing functionality, durability, and safety to withstand harsh environments. Its high functionality and design have been recognized, earning it the Good Design Award in 2018.

https://ms.citizen.jp/assets/066_08-04_マンボーダイバー_01

Inspire

The striking impact of the asymmetrical silhouette stirs an irresistible urge to pick it up. The prominently placed depth gauge on the dial and the sensor at the 9 o’clock position spark the imagination—what if you actually dove into the sea?—and ultimately ignite a genuine desire to own it. This model not only stimulates such subconscious feelings in users, but also possesses the functionality to fully satisfy those emotions. As with any product, not just watches, if you pursue functionality alone, you risk ending up with something bland and lacking in character. This model, however, brilliantly balances functionality with an iconic appearance, even within the constraints of ISO/JIS standards and underwater visibility requirements. As its nickname "Mola Mola Diver" suggests, the model features a silhouette so distinctive that it can be recognized at a glance, yet it never compromises on the functions required of a diver's watch. It truly embodies the designer’s essential role: achieving both practicality and a uniquely attractive appearance.

https://ms.citizen.jp/assets/036_05-07_グローバルパイロット_01

The Richness

This watch boasts a wide array of functions, resulting in a high-density dial. The well-balanced arrangement of each element allows a wealth of information to be conveyed to the user in a clear and parallel manner. Additionally, the shapes and color schemes of the sub-dials are carefully considered for visibility, and together with the sense of compactness unique to multifunctional models, they visually delight the user. The case is composed mainly of taut curves with few flat surfaces, evoking the maternal fullness of earth goddesses found in many ancient civilizations, symbolizing abundance. The unexpected individuality of this model lies in its evocation of maternal qualities within the highly masculine genre of pilot watches. Rather than simply designing for functionality, the overall presence—from the dial layout to the case shape—aims to evoke a universal image of fundamental richness that resonates with everyone.

https://ms.citizen.jp/assets/031_05-02_フルフロー_01

Rhythm in Flow or Streamlined

The design offers a high level of comfort both visually and physically when worn on the wrist. The lines flow seamlessly from the band to the case. However, this does not end in a monotonous rhythm. When the flow reaches the case, the tempo suddenly changes. This ensures that the design does not simply end as a full-flow form, but also firmly expresses the presence of the case. Looking at the overall finish, only the sides are given a polished finish, while the center section, which occupies a large area, features a hairline finish running from 12 to 6 o'clock. This brings out the full appeal of the stainless steel material. Turning to the dial, its silver tone closely matches that of the case and band, which is a major characteristic of this model. By unifying the dial, case, and band in color, the flowing design is further emphasized. The markings on the dial are also printed in white, reflecting a commitment to a consistent tone. Not only the form, but also the color scheme, designed with a sense of flow in mind, is a major attraction.