Silver German Glashütte precision chronometer Circa 1926

Silver pocket watch manufactured in quality 1A
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An important heavy chronometer created at the German Watchmaking School in Glashütte, as new and of museum quality with an indicator for true differential power reserve according to Alfred Helwig with documentation and extract from the archives from the Uhrenmuseum Glashütte, circa 1926.
Silver case, polished, case design Lucia, gold crown, pusher, hinges and shackle by Karl Richter.
Silvered dial, indexes, auxiliary seconds, power reserve indicator, blued spade hands. ¾ Plate movement, frosted, gilt, screwed gold chatons, heavy gold screw compensation balance, florally hand-engraved balance cock, spring detent escapement, fine escape wheel with mirror-polished steel cock, blued free-sprung helical balance spring.
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Diameter: 59 mm
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Weight: 172 g
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Signed: Heinz Wassermann Glashütte in Sachsen