Watch Glossary
1104 horological terms explained
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GS/TP ApprovedCertification
German military certification for precision timekeeping from Gesellschaft für Strahlenforschung.
GS/TP Movement CertificationCertification
German precision watchmaking standard for military chronometers requiring ±15 seconds monthly rate.
GS/TP Rate CertificateCertification
German military chronometer certificate documenting daily rate, amplitude, and beat error measurements.