REF. 5000 TECHNICAL DETAILS OF COMPASS WATCHES
HOROSWISS QUARTZ COMPASS WATCH :
Case size (closed) 48 X 14,4 mm
Movement : Quartz ETA 955.112 EOL
Cases (watch & compass) : antimagnetic stainless steel with unidirectional bezel diver type, screw-down case back and crown Crystal : flat HR 900
Bracelet/Strap : antimagnetic stainless steel bracelet or leather strap
The bracelet can be open on the clasp in order to put the compass directly on the map.
Compass : turning fluid compass divided into degrees, accuracy +/- 1°, magnetic bearing direct reading, mineral crystal high resistance 900 Vickers
Water-resistance : 10 or 20 ATM depending on the customer request
This is a precision instrument which required several years of development. The liquid contents is under constant pressure, I.E. approx. 3 bars at 28°C.
The pressure may reach 8 bars at 78°C under extreme condition, I.E. approx. 90 kg of pressure on each glass of the compass. The latter are held in place by screwed rings.
This compass required no maintenance for many years. It can endure pressures exceeding 100 bars without any difficulty. Precision is +/- 1°.
It should be used with certain precautions. For example, it should not be used near devices which create a magnetic field of any magnitude. For optimum reading accuracy, it should be kept well away from any nearby metallic mass, such as guns, helmets, metal tables, etc.
This compass is sealed in a water resistant container. Due to the transparency of the turning compass, you can use it directly on the map. The compass is only working in horizontal position.
Specifics compasses for North or South hemisphere available.