$ 185

ORIENT Defender II Mechanical Sports Black Dial Dark Green Nylon Strap Automatic Watch

  • Official Warranty Card
  • Automatic Movement Caliber F6B22
  • Silver Stainless Steel Case
  • Dark Green Nylon Strap
  • 22 Jewels
  • Black Dial
  • Mineral Crystal Glass
  • Fixed Stainless Steel Bezel
  • Solid Screw Case Back
  • Screwed-Down Crown at 3 o’clock Position
  • Buckle Clasp
  • Day Display at 10 o’clock and and Date Display at 3 o’clock Position
  • 24 Hour Sub-Dial at 5 o’clock Position
  • 40 Hours Power Reserve
  • 21,600 Vibrations/Hour
  • 100 m Water Resistance
  • Size : 42.4 mm x 12.2 mm

Watch Size Guide

Wrist circumferenceSuitable case sizes
5.5 in / 14 cm34 mm36 mm38 mm
6.0 in / 15.2 cm36 mm38 mm40 mm
6.5 in / 16.5 cm38 mm40 mm42 mm
7.0 in / 17.8 cm40 mm42 mm44 mm
7.5 in / 19 cm42 mm44 mm46 mm
8.0 in / 20.3 cm44 mm46 mm48 mm
Watch Size Guide


ORIENT RA-AK0403N Specifications :

Automatic10 bar water resistance
Driving systemAutomatic with hand winding mechanism
Caliber numberF6B22
Case materialStainless steel
Case backSolid
Case colorSilver tone
Band typeStrap
Band materialNylon
Band colorDark green
Band width22 mm
ClaspBuckle info tooltip
Dial colorBlack
Glass materialCrystal
HandsBlack and white (hour, minute) with white and red tipped arrow model second hand
Dial markersWhite batons with double trapezoid at 12 o’clock
Second markersMinutes markers around the outer rim
LuminousHands and hour markers
BezelFixed black stainless steel with arabic numeral markers per 5 minutes scale
CrownScrewed-down at 3 o’clock position
CalendarDay display at 10 o’clock and date display at 3 o’clock position
FunctionDay, date, 24 hour sub-dial, minute, second
Drive durationPower reserve approximately 40 hours
Vibration21,600 vibrations/hour
Water resistance10 bar water resistance (100 meters / 330 feet)
SizeDiameter : 42.4 mm x Thickness : 12.2 mm
Additional information

Additional information

Weight1 kg
Dimensions5 × 5 × 2 cm
Case Shape


Calendar Display

Day Date Hour

Diameter Ring

Large : 4.1 – 4.6 cm

Display Type



Luminous, Second Hand Halt Mechanism



Orient Watch is a Japanese watch brand owned by Seiko Epson. Established as an independent company in 1950, it became a functional subsidiary of Epson in 2009 before being fully integrated into the company in 2017.

Until it was absorbed into Epson, the Orient Watch Company had primarily marketed mechanical watches (self-winding & hand-winding), but also produced quartz, light-powered (solar) and radio-controlled models. Outside of the main business, the company produced some moving parts and electronic components that were then assembled into Seiko Epson’s electronic devices.

Currently, Akita Epson Corporation (formally Akita Orient Precision Instruments Co., Ltd.), a group company of Epson, manufactures all of the Orient movements in-house in Yuzawa, Akita, Japan.



The origin of Orient Watch Company dates back to 1901 when Shogoro Yoshida opened a wholesale shop called “Yoshida Watch Shop” in Ueno, Taito, Tokyo, Japan. Yoshida Watch Shop was successful, selling imported pocketwatches. In 1912, Yoshida expanded his business and began producing gold wristwatch cases. In 1920, Toyo Tokei Manufacturing was established, originally producing table clocks and gauges. It was not until 1934 that Toyo Tokei Manufacturing started the production of wristwatches. In 1936, the Hino factory was built in Hino, Tokyo, Japan. For several years, Toyo Tokei Manufacturing boomed at the Hino factory. However, affected by the poor Japanese economy after World War II, the company shut down in 1949.

After Toyo Tokei Manufacturing was shut down, Yoshida’s wristwatch manufacturing company was reborn in 1950, founded under the name Tama Keiki Company. Tama Keiki Co. continued manufacturing watches at the Hino factory. In 1951, Tama Keiki Co. changed its name to Orient Watch Company, Limited (オリエント時計株式会社, Oriento Tokei Kabushikigaisha), and in the same year the first Orient Star went on sale. Orient Watch was able to expand their visibility overseas after a memorandum trade agreement with China in 1955. The Royal Orient went on sale in 1960. Other important watches in the company’s history include the “Dynamic” in 1956, “Grand Prix 100” in 1964, “Fineness” (the world’s thinnest automatic wristwatch with day and date calendar function for its time) in 1967, and the “Tenbeat” in 1970.

In 2003, the Orient Technical Center (OTC) was established and the assembly of luxury watches began in Ugo, Ogachi, Akita, Japan. In 2004, the high-precision caliber 88700 movement went on sale via the Royal Orient watch line. In 2005, Orient Star Retro-Future collection was launched. In 2010, Orient Watch Co. celebrated its 60th anniversary with a limited edition model.

In 2001 Seiko Epson (one of three core companies of the Seiko Group) became the majority shareholder (52%) of the company. Orient Watch became a wholly owned subsidiary of Epson in 2009. After transferring its business to Epson, the company exists as a dormant company now. Epson Sales Japan Corporation markets the Orient watches, while Akita Epson Corporation manufactures them.



ORIENT RA-AK0403N Features : 

This adventurous ORIENT 42.4mm mechanical sports watch showcases a stainless steel case and band, dial, and screw-down crown to maximize water resistance. Distinguished features include a 24-hour sub-dial, weekday sub-dial, white hands and hour markers, and a convenient date aperture. The watch’s chapter ring is finished in a hash mark design for specific and easy time tracking. It supports water resistance of 100 meters.

  • Day and date display
  • 24-hour sub-dial
  • 22 jewels
  • Solid screw case back
  • Screwed-down crown


Click here to download Service manual for ORIENT RA-AK0403N.

Service Center

Service Center

Orient Watch Centre Indonesia

Gedung Metro Pasar Baru, Lt. Dasar
Jl. H Samanhudi No. 115,
Jakarta Pusat 10710
Tel: +62-21-3808479
Email: info@orientindonesia.com

Water Resistance

Water Resistance

Water Resistance Guideline

Water Resistance Degree

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