Established as one of the most acclaimed models in the mechanical dive watch segment, the Orient Kamasu II RN-AA0812L combines professional technical specifications with a retro-inspired sporty aesthetic. This Japanese domestic market (JDM) version stands out for featuring the coveted bilingual day disc in English and Kanji.

Its deep blue gradient dial transitions to darker shades toward the edge, accompanied by circular hour markers and hands treated with sepia-toned luminescent material that lend an attractive vintage patina without compromising impeccable nighttime visibility. The watch is crowned with a unidirectional “Pepsi”-style rotating bezel (navy blue and red on the first 15-minute segment) and a flat sapphire crystal with maximum scratch resistance. Housed in an ergonomic 41.8 mm stainless steel case (46.8 mm lug-to-lug), with a screw-down crown and screw-down solid case back that guarantee water resistance to 200 meters (20 bar), the watch is powered by Orient’s in-house F6922 caliber, featuring manual winding and a hacking seconds function.

• “Pepsi” bezel and gradient dial: A two-tone blue/red combination featuring a blue gradient dial and vintage-inspired sepia luminescent hands.
• Sapphire crystal: Maximum-durability scratch-resistant front protection, a superior standard compared to conventional mineral crystals.
• JDM-exclusive Kanji date display: Dual calendar with a day wheel selectable in English and Japanese characters (Kanji).
• Orient F6922 in-house caliber: Japanese-made automatic movement with 22 jewels, featuring manual winding and a hacking seconds function.
• 200 m (20 bar) Diver Water Resistance: Protected screw-down crown and screw-down case back suitable for recreational diving, water sports, and deep-sea diving.
• Compact wrist profile: 41.8 mm diameter complemented by a modest 46.8 mm lug-to-lug distance for an optimal fit.
• Stainless steel bracelet: Solid-link bracelet with a double-push-button folding clasp and safety tab.

Technical Specifications

Feature Detail

Reference RN-AA0812L (International equivalent RA-AA0812L)

Collection Orient Diver Sports / Kamasu II (Vintage Gradation Series)

Caliber Orient-manufactured mechanical automatic Cal. F6922 (Made in Japan)

Complications Dual calendar: bilingual (English / Kanji) date and day of the week at 3:00

Jewels / Frequency 22 jewels / 21,600 vph (3 Hz)

Power Reserve Approx. 40 hours (with manual winding and seconds-stop function)

Case Material Polished and brushed stainless steel

Dimensions Diameter 41.8 mm | Length (lug to lug) 46.8 mm | Thickness 12.8 mm

Crystal High-strength flat sapphire

Bezel Unidirectional rotating bezel with 120 clicks and “Pepsi” aluminum insert

Dial: Blue gradient with applied hour markers and vintage accents

Luminescence: High-powered luminescent pigment (retro sepia tone) on hands and hour markers

Crown and case back: Screw-down crown at 3:00 and screw-down solid case back with engraved emblem

Bracelet Stainless steel (width between lugs 22 mm) with a safety folding clasp

Water resistance 20 ATM / 200 m (suitable for recreational diving and water sports)

Origin Made in Japan (JDM - Japanese Domestic Market)