Orient Kamasu Blue Dial Diver Watch RA-AA0818L39B

Description

The Orient Kamasu Automatic Diver Watch RA-AA0818L39B is widely considered one of the highest-value dive watches in modern horology. Named after the Japanese barracuda (“Kamasu”) due to its sharp, tooth-like triangular indices and sleek profile, this rugged sports timepiece merges genuine 200-metre water resistance with premium sapphire glass and an in-house Japanese movement. It is tailored for active men who require unyielding durability without sacrificing desk-diver sophistication.

Built for Marine Sports and Everyday Reliability

Engineered from corrosion-resistant 316L stainless steel, the RA-AA0818L39B sports a balanced 41.8mm case profile with a 46.8mm lug-to-lug length. This compact geometry ensures that despite its substantial tool-watch presence, it wears comfortably on virtually any wrist size.

Scratch-Resistant Sapphire Crystal Protection

One of the defining upgrades of this generation is the flat sapphire crystal. Offering unmatched resistance to scratches, abrasions, and daily knocks, sapphire guarantees crystal-clear dial visibility whether submerged in water or navigating urban life.

High-Visibility Ocean Blue Dial

The sunburst blue dial radiates varying shades of navy and royal blue depending on lighting conditions:

• Distinct barracuda-style hour markers and hands treated with intense luminescent material for low-light legibility
• Dual day and date complication neatly integrated at the 3 o’clock position
• 120-click unidirectional rotating dive bezel with minute graduations for measuring elapsed dive times

In-House Automatic Calibre F6922 Performance

At the core of the watch sits Orient’s proven in-house mechanical workhorse, the calibre F6922. Assembled in Japan, this automatic movement incorporates 22 jewels and runs at 21,600 vibrations per hour.

Versatile Winding and Precision Hacking

The F6922 supports both natural self-winding from everyday wrist motion and manual winding through the screw-down crown. Built-in hacking capability pauses the seconds hand when the crown is fully extended, allowing down-to-the-second time setting against atomic references.

200-Metre Water Resistance with Screw-Down Crown

The watch is built to genuine dive standards, featuring a threaded screw-down crown and a solid screw-in case back. This airtight construction provides true 200m (20 bar) pressure tolerance, making it ideal for swimming, scuba diving, and watersports.

Robust Stainless Steel Bracelet Construction

Supplied on a solid 22mm stainless steel bracelet with polished outer sides and brushed links, the Kamasu feels solid and balanced. The bracelet is secured by a double-locking fold-over clasp with push-button release, ensuring total security in any environment.