GB/T 42947-2023 (English Version)

Standard No.: GB/T 42947-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42947-2023

Scope: This document describes the reliability test method for watch movements. This document is applicable to the reliability test of mechanical watch movements, pointer-type quartz watch movements and liquid crystal quartz watch movements. It can also be used as a reference for other types of watch movements or watches with similar movements.

Introduction

In-depth interpretation of watch movement reliability test methods

Test items	Test type	Temperature and humidity conditions	Duration
Shock test	Typical shock, moderate shock, severe shock	(23±2)℃	24 hours
Temperature test	Low temperature environment test	(5±1)℃	14 hours
Humidity test	High humidity environment test	(55±1)℃, 70±5% humidity	48 hours

Background of standard formulation and analysis of technological evolution

With the continuous development of the watch industry, the requirements for product reliability are increasing. The introduction of GB/T 42947-2023 fills the gap in the reliability test methods of watch movements in China and provides a unified technical specification for the industry.

Implementation suggestions

Suggestion 1: Before conducting reliability tests, ensure that the calibration of all test equipment meets the standard requirements, especially the impact test bench and constant temperature and humidity chamber.

Suggestion 2: Test different types of movements (mechanical, quartz) separately to ensure the accuracy of the test results.

Suggestion 3: During the test, pay close attention to the operating status of the equipment and handle possible interruptions in a timely manner to ensure the continuity of the test.

GB/T 42947-2023 Referenced Document

GB/T 22780 Liquid crystal displaying quartz watches
GB/T 6044 Analogue quartz watches
QB/T 1249 Mechanical watches

GB/T 42947-2023 history

2023 GB/T 42947-2023 Reliability test method for watch movement