1928年，积家创造出了一项伟大的发明——Atmos空气钟，利用空气为钟表提供动力。无需人手操作，当温度产生变化，座钟便会随着密封罩内的混合气体的膨胀与收缩，不断为自己上链。半个多世纪以来，积家空气钟一直是瑞士政府馈赠贵宾的官方礼物。除了复杂而又耐人寻味的走时机制外，还可以从多个角度观察其内部运作，独特的设计让空气钟散发经典隽永的光芒。Atmos, CIRCA 1961Movement :Mechanical movement wounded by changes in temperature, cal. 526, 15 jewels, signedDial :Skeletonised dial with white chapter ring for Roman numerals, signedCase :Gilt brass rectangular case with plinth, aperture to view the pendulum, small glazed aperture for the water level, signedWith :Jaeger-LeCoultre Certificate of Origin and presentation boxMeasurement 145 × 130 × 255 mmCondition Report Grade 1.5