Simplicity in Many Functions

PROMASTER AQUALAND 200m

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2024.08.28

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.

　　

Water Pressure Sensor and Screw-Lock Structure

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Since the release of the AQUALAND Depth Meter in 1985, PROMASTER diver's watches with depth gauges have placed the 'water pressure sensor' at the 9 o'clock position, making it an icon of the series. While considering the overall silver and black color balance of the watch, this icon is further accentuated. In addition, a guard is provided around the sensor part for protection, and 'Duratect DLC,' which is hard and highly scratch-resistant, is applied.

Diver's watches often use a 'screw-lock crown' to prevent malfunctions underwater. In this model, a 'screw-lock push button' is also adopted. Like the water pressure sensor, 'Duratect DLC,' which is hard and highly scratch-resistant, is applied.

Luminescence Color Differentiation

The dial and hands are designed to ensure legibility in the dark, even when many hands overlap. The luminescence color for the time display system (hour, minute, second hands + indexes) is green, while the luminescence color for the depth display system (current depth + maximum depth) is blue, making it less likely to be misread underwater. Also, CITIZEN watches use highly safe luminescent paint that does not contain radioactive substances.

Usability

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As the name suggests, a diver's watch is a watch that can be used while diving. Therefore, it is assumed to be worn over a wetsuit or dry suit. However, considering actual usage situations, most of the time is spent during marine leisure, outdoor activities, or everyday life. Therefore, an 'extension band' that is easy to put on and take off is included, allowing for comfortable wear both during diving and daily use.

Simplicity in Much Information

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In addition to displaying the 'current time' as a watch, the 'water detection sensor' and 'water pressure sensor' react underwater, and the 'depth hand' at the 3 o'clock position indicates the current depth. The 3 o'clock position serves as the base point (0m), expressing the image of gradually diving from the surface (horizontal = sea level) downward. Depth can be measured up to 70m. The indicator ring displays depth, with larger intervals for the 0–40m range (recreational diving range) and smaller intervals for the 40–70m range, improving legibility. A 'maximum depth hand' is also included, allowing you to check how deep you have dived even after surfacing. In addition, the sub dial at the 9 o'clock position allows you to check the charge level before diving.

The movement installed is analog, yet it is equipped with many functions. Therefore, to prevent information congestion on the dial, graphical elements are minimized, and information is organized with only essential text and color differentiation of luminescence and printing. We hope you will experience its true value by actually wearing it while diving.

2018 Good Design Award Winner Evaluation Comments

As a diver's watch with high functionality and design, and as a well-crafted tool, it was highly evaluated among the judges. The thick, machined bezel that can be operated even while wearing gloves, the high legibility of the dial and hands backed by underwater experiments, the crown locking mechanism, and the light-powered drive. The trust born from the pursuit of such high functionality is carefully brought together in the design. As an item that symbolizes one's style and way of thinking, it will surely gain the support of many users.

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CREDIT

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

Product Designer & Writer

Ryuji Tonobori

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Simple yet Distinctive

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.

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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.

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Visibility

For diver's watches used in life-critical diving situations, not only water resistance but also 'visibility' is considered essential. This model is equipped with the world's first electronic depth meter function. In addition to measuring the current and maximum depth, it also features an alarm function that is easy to hear underwater. However, the most important information is still the dive time. The deeper you go, the more your judgment declines, so this model pursues instant readability of the hands, carefully considering the size, shape, and luminescence area of the indexes and hands. It is truly a pioneering model that could be called the "bible of diver's watches."

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Form Follows Function

To create a robust watch with water resistance up to 1300 meters, the design features a stable, solid square form. All unnecessary decorations have been eliminated, focusing solely on essential functions. The side surface is made as smooth as possible, and the bezel has large cutouts so it can be operated even while wearing gloves. The front features a rare shape for a non-standard model, with the quarter section from 12 to 3 o'clock (excluding the crown) rotated and copied at 90-degree intervals—this is a distinctive feature of this model. The four screws that secure the glass are also beautifully designed to prevent the glass from popping out when internal pressure rises as the watch surfaces from saturation diving. For visibility in the dark depths where light does not reach, each hand has a different shape, and the dial is designed to match the hands. This design embodies CITIZEN's idea of 'functional beauty,' born from the pursuit of functionality and the elimination of waste for use in harsh environments.