H80*
Summer time
Checking the summer time setting
You can check whether the time currently indicated is summer time or not by using the summer time setting.
- Pull the crown out to position 1.
- After finishing checking, push the crown in to position 0 to finish the procedure.
The hands indicate the current setting as follows.
| Second hand | World time setting |
|---|---|
| Chronograph minute hand | Summer time setting (SMT ON/OFF) |
| Chronograph 1/20 second hand | Switching function of summer time setting (automatic/manual) |
The watch returns to normal indication.
How to read indication of the summer time setting
| Indication of the chronograph minute hand | Time currently indicated |
|---|---|
SMT ON ![]() |
Summer time |
SMT OFF ![]() |
Standard time |

Cal. No. H80*
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