In its second incarnation, the Memovox Polaris was fitted with a high-frequency calibre with a balance oscillating at 28,800 vph. In the American version, the dial was marked HPG meaning High Precision Guarantee. Its one-piece screwed case gave the Jaeger-LeCoultre 916 alarm calibre increased volume. Its blue colour is the last colour in the spectrum to remain visible at great depth. 1120 examples of this model were manufactured.
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