|
Cal. |
4R35 |
4R36 |
4R37 |
4R38 / 4R71 / 4R72 |
4R39 |
|---|---|---|---|---|---|
|
1. Features |
3 hands (hour, minute, second), date display |
3 hands (hour, minute, second), date/day of the week display |
3 hands (hour, minute, second), 24-hour hand, date display |
3 hands (hour, minute, second) |
3 hands (hour, minute, second), 24-hour hand |
|
2. Vibrations per hour |
21,600 vibrations/hour (6 vibrations/sec) |
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|
3. Operational temperature range |
Between −10°C and +60°C (14°F and 140°F) |
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4. Driving system |
Automatic winding type with manual winding mechanism |
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|
5. Duration |
Approx. 41 hours |
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|
6. Jewels |
23 jewels |
24 jewels |
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The accuracy above is factory-adjusted.
Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time accuracy specified above dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, temperature, arm movement, and whether the mainspring is wound up fully or not, etc.