Technical Specifications High Quality Switzerland self-winding watch STP Mechanical movement STP5-15 Shape and type Round caliber, mechanical lever movement, self winding Size 11 1/2'' Frequence 28'800 vibrations per hour Jewelling 26 jewels Overall diameter 26.20 mm Case fitting diameter 25.60 mm Height 4.60 mm Functions Hours, Minutes, Seconds, Date indication Time setting, Winding system 3 positions: 1)Manual winding, 2) Quick correction of date, 3) Time setting Winding stem, standard length 15.70 mm (oversize length 17.7 mm) Stop Seconds With Barrel spring Nivaflex NM Moment of force 1090 - 1130 gmm / 80 gmm Power reserve 44 hours Positions of testing (COSC criteria) 5 positions, CH, CB, 6H, 9H, 3H Average rate (0H) -0/+15 sec/d Max amplitude (CH-0H) 330° Min. amplitude (9H-24H) 200° Stabilisation time 20 s Measuring time 40 s Shock absorber Incabloc Balance wheel Gilt Lift angle 52° Max variation all positions 15 sec Isochronism (CH 0H - CH 24H) ± 20 s/d MOQ 300pcs- 1 color; 500pcs- 2 color Watch Colors Customized colors
The scale of production capacity and the comprehensive strength of Sun Yin Crystal who is the top three in Sapphire industry in China. In 2017, Sun Yin Crystal has imported some automation production of technology and machine that can reduce the whole production time and cost effectively. Therefore, Sun Yin Crystal can provide a competitive price and high-quality products for customers.
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