Common Characteristics of Divers' Watches
Dive watches are more than just highly water-resistant timepieces. They are equipped with functions and structures designed for accurate time-telling and safe use in the unique underwater environment.
Here, we introduce some common characteristics of dive watches.
Water Resistance
Water resistance is one of the most crucial features of a dive watch.
Underwater, the deeper you dive, the greater the water pressure on the watch. Therefore, dive watches are required to have higher water resistance than everyday waterproof watches.
Many common dive watches offer 100m water resistance or more, with professional models boasting 200m, 300m, or even greater specs.
However, water resistance ratings do not mean "free to use at that depth"; they represent performance confirmed under specific testing conditions. In actual use, factors beyond water pressure, such as an unsecured crown, deteriorated gaskets, impacts, and temperature changes, can also affect water resistance.
Therefore, if you use your watch in the sea or a pool, regular water resistance checks and maintenance are recommended.
Rotating Bezel
The rotating bezel is one of the most iconic features of a dive watch.
A rotating bezel is used to track diving time or elapsed time. By aligning the triangular marker or indicator on the bezel with the minute hand when commencing a dive, one can instantly see how many minutes have passed.
There are two main types of dive watch bezels: unidirectional rotating bezels and bidirectional rotating bezels.
Professional dive watches typically employ a unidirectional rotating bezel, which only turns in one direction. This mechanism is designed to enhance safety.
Should the bezel accidentally move underwater, it is designed to prevent it from moving in a direction that would underestimate the dive time, thereby reducing the risk of misjudging the remaining time.
For watch enthusiasts, the tactile click and operational feel of the bezel are also part of the enjoyment of choosing a dive watch.
Screw-down Crown
The screw-down crown is also a crucial feature adopted by many dive watches.
Unlike regular push-in crowns, a screw-down crown tightens firmly into the watch case, enhancing its airtight seal. This prevents water and moisture from entering the watch's interior, supporting its high water resistance.
To adjust the time or date, unscrew the crown counter-clockwise to unlock it, then pull it out to the necessary position to operate. After adjustment, push the crown in and screw it clockwise, ensuring it is securely tightened.
If the crown is loose when exposed to water, it can cause water to enter the watch. Before using your watch in the sea or a pool, always check that the crown is securely closed.
Furthermore, avoid operating the crown underwater or near water. Even with a waterproof watch, the seal may be compromised during crown operation.
Legibility
Legibility is also extremely important for dive watches.
Underwater, the deeper you go, the less light penetrates, and visibility becomes dim. To ensure that the time and elapsed time can be read instantly even in such conditions, dive watches often feature large hands, thick indexes, and high-contrast dials.
Additionally, many models have luminous coating on their hands and indexes. This glow in dark places and underwater aids in checking the time.
The reason why dive watch dials tend to have simple and strong designs is not merely for aesthetic reasons. It is a design based on practicality, to allow for instantaneous reading in harsh environments.
Materials
Dive watches are made from materials with excellent durability and corrosion resistance.
Seawater, in particular, is a harsh environment for watches. Salt can affect metal parts and gaskets, so cases and bracelets are often made from corrosion-resistant materials such as stainless steel, titanium, and ceramic.
Stainless steel is a classic material that offers a good balance of durability and texture.
Titanium is lightweight, rust-resistant, and comfortable for extended wear.
Ceramic bezels are popular for their scratch resistance and ability to maintain a beautiful luster.
However, no matter how superior the material, it is crucial to rinse the watch with fresh water and wipe off moisture with a soft cloth after exposure to seawater. Daily care is key to keeping your watch beautiful for a long time.
History and Popularity of Dive Watches
The history of waterproof watches truly began around the 1920s. Subsequently, in the 20th century, dive watches evolved in response to demands from the military and professional divers, becoming timepieces that could accurately tell time and withstand harsh environments underwater.
Eventually, as diving and marine sports became more widespread among the general public, dive watches transitioned from professional tools to sports watches that could be enjoyed in everyday life.
Today, they are not only used for actual diving but also highly popular as everyday watches due to their robust construction, excellent legibility, sporty design, and commanding presence on the wrist.
Reliable practicality both underwater and on land.
And the powerful beauty of a tool.
These are the reasons why dive watches have been loved for so long.
Consultation at Conte Vanou, an authorized watch and jewelry dealer
Conte Vanou, an authorized watch and jewelry dealer with stores near Yoyogi, Hatsudai, and Tokyo Opera City in Tokyo, offers consultations on dive watches, mechanical watches, unique brand watches, watch repair, and maintenance.
For dive watches, it is important to actually check not only the water resistance and design, but also the size, weight, bezel operation, and strap compatibility when worn on the wrist.
In-store, we can guide you through models ranging from those suitable for everyday use to professional sports watches, according to your usage scenarios and preferences.
Additionally, please feel free to consult us about battery replacement, strap replacement, water resistance concerns, and overhauls for dive watches you already own.
Dive watches are practical timepieces that are reliable both underwater and in daily life.
Whether you are looking for your first one or considering a replacement or maintenance, please visit Conte Vanou, an authorized watch and jewelry dealer, for a consultation.