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In 1675, it is told that a man by the name of Tozaemon Tamaya established a shop selling lenses for eye glasses. The name of the shop was called Tamaya Megane-ten.
It was during the Meiji Era (1868-1912), in 1901, that Tamaya Megane-ten was renamed as Tamaya Shoten and became a partnership company. Tamaya Shoten was one of the first Japanese companies to import surveying equipment from overseas and to distribute them in Japan. It is also the first company to produce a surveying equipment (a pocket compass in its original form) in Japan. In 1894 Tamaya Shoten was licensed to make a ruler (a device with which to measure lengths) in its original form. By the end of the Meiji Era, Tamaya Shoten developed its own transit and level.
During the Taisho Era (1912-1926), Tamaya Shoten was making more and more surveying equipment in Japan, as opposed to importing finished products from abroad. It was making levels and theodolites, and by 1922 made the first sextant in Japan. In August 1901, Tamaya Shoten became a corporation.
1955-1964: Tamaya manufactured tilting level TL-3, auto level SL-2, and transit ST-2. In 1960 Tamaya began manufacturing and selling Japan’s first plumb line for dams.
1965-1974: Distribution of Kern’s drafters. Manufacturing and distribution of echo-sounders
1975-1984: Distribution of Wild’s distance meters. Development of Japan’s first PLANIX planimeters.
In 1983 Tamaya was renamed as Tamaya Technics Inc.
As you can see, Tamaya has always been a pioneer in the field of surveying in Japan. Today Tamaya specialize in manufacturing, sales, and export of surveying instruments, weather equipment, optical instruments, measuring instruments, and navigation instruments.
The finest quality of this sextant has been proven in many years of use by ocean-going yachtsmen and marine industry professionals. Its optical system is designed with the knowledge to assure the maximum performance. The sunshade on its horizon mirror is a new feature, which blocks unwanted sunlight.
Arc: Reads -5 to 125 degrees; White engravings on black finished bronze.
Micrometer Drum: White engravings on a black plastic drum, held securely to tangent screw with two locking devices. 1′ scale Vernier reads to 0′.2
Frame: Lightweight aluminum alloy with corrosion resistant black finish, Bronze arc.
Index Mirror: Rectangular, 57x42mm, Aluminized on the rear side
Horizon Mirror: Circular, 57mm diameter.The right half aluminized on the rear side and comes with a sunshade
Shade Glass: 4 for index mirror, 3 for horizon mirror, 1 shade glass, 1 polaroid glass for eyepiece of telescope
Telescopes: 4x40mm angle of view 7 degrees or 7x35mm angle of view 6.5 degrees, All optics fully coated
Illuminator: On both arc and drum
Weight: 1.6 kg
Carrying Case: Double wall air mold (H.D. Polyethylene) 335x335x165mm, 1.7 kg
Standard Accessories: 1 adjusting wrench, 2 AA size dry cells, 1 LED bulb
** Navigation Calculator
Tamaya Navigation Calculator allows you to do the most complicated navigation and astro navigation calculations easily, quickly, and accurately.
Safety at sea depends on a good navigation calculator, with many built-in programs for simple operation.
Operation: Touch panel with stylus
Power source: 3 pieces of size AAA battery (dry cell)
Operating time: Standard approx. 8 hours for continuous operation
Operating temperature: 0 degreeC - 45 degreeC (32degreeF - 119 degreeF)
Display: LCD colors, 240 x 320 dots
Dimensions: 72mm (W) x 125mm (D) x 14mm (H) or 2.83in. (W) x 4.42in. (D) x 0.53in. (H)
Weight: 165g (without battery), or 582oz (without battery)
Standard accessories: Stylus and neck strap
** Marine Vanes
Tamaya Marine Vane is an anemometer, which measures both wind speed and wind direction with a wind speed and direction transmitter, and shows both digital and analog values.
Compatible to both FV-301 and KV-5020
Type: Wind direction detector - Absolute encoder type, 8-bit gray code
Wind speed detector - Non-contact type with the use of optical pulse
Output: Wind direction - 256 partition dial, 8-bit gray code serial signal
Wind speed - 24 pulse/one revolution pulse signal
Starting operations: Wind direction - Below 2m/s; Wind speed - Below 2m/s
Wind speed resistance: Maximum instantaneous wind speed of 90m/s
Measuring ranges: Wind direction - 360°(all directions); Wind speed - 2～60 m/s
Accuracy: Wind speed - ±0.5 m/s or lower at wind speeds of less than 10 m/s or less
Below ±5% at wind speeds exceeding 10 m/s
Output: Open collector - 6p terminal system, 6 shafts sealed
Operating temperature: -40ºC to +40ºC
Weight: Approx. 2.5kg
Painting: Munsel mark 2.5 G7/2
Compact and Lightweight, Easy to install
High Durability Propeller - Wind speed finder propeller is made of high durability, lightweight glass fiber polycarbonate
Direct Reading in Either m/s or Knots Can Be Selected
Easy-to-read Analog and Digital Displays
Features: Wind direction - LED 36 dot display (displays instantaneously)
Wind speed - LED 31 dot display m/s and knot (switchable), 0～60m/s, 0～60/120Kt (automatically switchable); LED 7 segment 3 lines (average display)
Averaging system: Wind speed - Averages speed every 10 minutes; Data sampling time - 0.25 second (wind direction & wind speed)
Function: Data processing feature - Averages data every second, data are input every second; Display of average value - Averages data every 10 minutes, data are input every 6 seconds
Illumination control: Brightness adjustable by resistor (Optional remote control available)
Output signal: Current loop serial signal transmission speed 1200 baud (instantaneous value every 250 ms)
Connection: Terminal system, 6 shafts sealed
Power: AC 100V±10%, 50/60 Hz (120V, 220V, 240V)
Power consumption: Approx. 20VA
Operation conditions: Temperature: 0ºC～40ºC (provided there is no condensation),
Painting: Munsel mark 2.5 G7/2
Weight: Approx. 2.3kg
Compatible to VDR
Built-in NMEA output, which is indispensable for ocean-going vessels
LED illumination with dimmer, for long life
Optional - The KV-5025 is also available as an absolute wind speed/direction indicator
Features: Wind direction - Relative wind direction (instantaneous) indicating range 0 ~ 360 degree; Wind speed - Relative wind speed (instantaneous) indicating range 270 degree (60m/s)Kt or m/s
Data processing feature: CPU vector operation
Illumination control: LED (with dimmer)
Output signal: RS-232C or RS-422 Serial current loop
Connection: Terminal system, 6 shafts sealed
Power: AC 87 ~ 264V, 47 ~ 440Hz
Operating environment Temperature: - 10 degree C ~ + 50 degree C
Humidity: 20% ~ 95% (no condensation)
Painting: 2.5 G7/2
Weight: 7.5kgs (Approximately)
Optional equipment: Remote dimmer switch, KV-5025 absolute wind speed/direction indicator, Simplified vessel speed/course signal transmitter
*** Marine Binoculars
SS7 x 50RB-D
Tamaya 7×50 military type binoculars with superb optics and rubber-armored surface have been designed and constructed specifically for marine environment.
With the individual focus, both eyepieces are adjustable, resulting in a more solid construction and greater resistance to wear
Objective Lens Diameter: 50mm
Objective Lens Coating: Multi-Coating
Eyepiece Coating: Multi-Coating
Prism Coating: Multi-Coating
Material of Prism: BAK4
Eye Relief: 18mm
Field Of Vision: 7.1 degree
Field Of View At 1,000m: 124m
Diameter Of Exit Pupil: 7.14mm
Relative Brightness: 50
Dimensions: 193 x 175mm
Exterior: Rubber-Armored Surface
Carrying Case: Comes with a Leather Case