Citizen Crytron 4 Mega

Timing Data

This watch has really shown how high-frequency differs from thermocompensation, maintaining a good overall SPY but fluctuating noticeably as the climate changes from winter to summer.

Day Deviation SPY Correction
0 -0.008 0  
5 -0.044 -2.6  
19 0.144 2.9  
23 0.246 4  
72 -0.556 -2.7  
92 -0.174 -0.6  
142 1.398 3.6  
160 2.008 4.5  
168 2.34 5.1  
177 2.304 4.7  
183 2.796 5.5  
189 3.112 6  
196 3.404 6.3  
130 3.636 6.5  
137 3.89 6.8  

Graph showing trends in deviation from Standard Time (in seconds) and rate (in seconds per year)

crystron

A Note on the Accuracy and Reliability of Timing Results

There is always going to be an unknown margin of error in any method of timing, and I estimate that each timing event could be off by as much as 0.1 second (though in practice I believe my results to be somewhat better than this). As a consequence of this potential margin of error, results over short periods of time are unreliable. Ultimately, the only result that matters is that which comes at the end of a full 365 days. Where interim results show consistent timings or steady trends, however, then it is safe to assume that those results are fairly accurate.