Marine watch

What is a diver's watch?

What is a diver's watch?

Diver's watches are called "submersible watches" among the water resistant watches specified by the JIS standard. As the name implies, they are special watches that can be used for diving.
Among them, it is divided into a pro-spec model that can support saturated diving and a model for general users who can scuba diving.
This is a watch that not only has excellent water resistance but also has passed various strict standards of ISO and JIS.

Divers watch definition

Divers watch definition

The definition of a diver's watch is that it has a pressure resistance (equivalent to 125 m for 100 m) that can withstand at least 100 m diving and 1.25 times the water pressure, and that it has a function to manage diving time.
Since it is assumed that it can function normally in the deep sea and can be used safely and accurately, it has passed various tests such as visibility, magnetic resistance, impact resistance, salt water resistance, external force, water tightness, helium gas resistance etc. Must do it.
Even if it is written as 100m waterproof, it cannot be said to be a diver's watch unless these standards are met.


Functions and features of diver's watch

Divers' watches with various excellent performances are often selected as `` everyday use '',
Each brand has developed models that emphasize design and practicality and is gaining more popularity.
Here, we will introduce the main functions and features of the diver's watch.

Functions and features of diver's watch Part 1 "Waterproof and durable"

The best feature of a diver watch is, of course, waterproof performance.
Most models called diver's watches have a waterproof performance of 200m or more.
The popular Rolex submarina is 300m, but there are 1000m and 2000m for deeper waterproof models. There are also models that are waterproof to 4000 meters, such as Hublot's Oceanographic.
In addition, the bracelet and rotating bezel are hard to break because it often hits the rock surface or the hull, making it a durable and robust construction that can be used safely even in harsh deep sea environments.

Functions and features of diver's watch Part 2 "Visibility"

Divers must work in deep water, where the sun's rays do not reach.
Divers' watches are required to be able to see the time and the operating status of the watch in a dark place from a distance of 25 cm.
Luminous paint is applied to indexes, hands, and bezels to enhance visibility, and it is characteristic of glowing in the dark.
At 12 o'clock on the rotating bezel, luminous paint called Luminous Point is attached, but the bezel of a popular model seems to have many such designs.

Functions and features of diver's watch Part 3 "Reverse rotation prevention bezel"

Diver's watch also defines the item "has a function to manage diving time."
Most models use this rotating bezel to measure the dive time (= cylinder remaining air time, decompression time).
Some have an inner bezel, such as the IWC Aquatimer.
The reason that the bezel is designed to rotate only in the reverse direction is to prevent the bezel from rotating and reading the elapsed dive time short when hitting.

Divers watch functions and features Part 4 "helium escape valve"

The helium escape valve is a mechanism that allows helium that has entered the watch to escape outside the watch.
Helium gas is used by professional divers for diving.
Helium is a very small molecule that can enter the watch through gaps when working in the deep sea or entering a vacuum chamber. The helium escape valve plays a role in releasing the helium that has entered.
If helium remains inside the wristwatch, it will explode, so pull it out slowly when ascending.

Diver's watch functions and features # 5 "Extension buckle"

It is a feature that is rarely seen except for divers watches, but some metal bracelet models allow you to freely adjust the length of the bracelet. Although it is about 30mm even if it is free, it is a function provided so that you can wear a diver's watch from above the diving suit.

Divers' Watches by Brand, Recommended


Divers' Watches by Brand, Recommended

Rolex Submarina Recommended Popular Model

Representative of divers watch. The most famous and always popular model is the Rolex Submarina.
Appeared in the 1950s, variations in "date availability" and highly waterproof "Sea-Dweller" and "Deep Sea" in top models are as popular as they are.
The price range is wide and the variety is abundant. Keep an eye on me.

Domestic tax included price: 1,242,000 yen
1,280,000 yen (tax included)
Submarina Date
Domestic tax included price: 928,800 yen
1,580,000 yen (tax included)
Submarina Date
Domestic tax included price: 1,393,200 yen
1,480,000 yen (tax included)
Submarina Date
Domestic tax included price: 4,114,800 yen
3,980,000 yen (tax included)

Omega Seamaster Recommended Popular Model

Seamaster attracts attention because it is also used in the movie "007" series. A diver's watch that shines on suits as worn by James Bond has become established.
There are many types of Seamasters. We have a wide range of models from introductory models to professional models.
The price range is wide and the variety is abundant. Keep an eye on me.

Seamaster Ploprof
Price including tax in Japan: ¥ 1,360,800
1,360,800 yen (tax included)
Omega Seamaster Planet Ocean Chronograph Co-Axial
Price including tax in Japan: 864,000 yen
864,000 yen (tax included)
Seamaster 600 Planet Ocean
Domestic tax included price: 648,000 yen
438,000 yen (tax included)
Seamaster Planet Ocean 600M Co-Axial Master Chronometer
Domestic tax included price: 756,000 yen
756,000 yen (tax included)

Panerai Submersible Recommended Popular Model

Robust and rugged model with outstanding visibility in the deep sea and distinctive appearance that can be identified at a glance.
Originally made for the Egyptian Navy in 1956, the Submersible was improved to a professional diver's watch.
If you are looking for submersible stock, go to Yukizaki.

Luminor Submersible 1950 3 Days Bronzo
Domestic tax included price: 1,630,800 yen
3,580,000 yen (tax included)
Submersible 1950 3 Days Flyback Chrono
Price including tax in Japan: ¥ 2,034,000
2,034,000 yen (tax included)
Luminor Submersible 1950 Carbotech 3 Days Automatic
Domestic tax included price: 2,030,400 yen
2,030,400 yen (tax included)
Luminor Submersible Acciaio
Price including tax in Japan: 864,000 yen
864,000 yen (tax included)