Citizen / Miyota 8215 — Hand-Wound Conversion
• 42-hour power reserve
• Hacking seconds
• Quick-set date

In-House Modifications and Regulation
• Automatic winding rotor removed to convert the movement to manual winding
• Original date disc replaced with an all-red date disc
• Movement checked and regulated to a rate tolerance of ±15 s/day, with a target beat error of 0.6 ms.

On the bezel, the “+” and “-” in front of the cities allow you to define if these cities are before or after Greenwich, and if you need to read a time difference clockwise or anti-clockwise. Between “Greenwich” and “+Tokyo”, you have a time difference of +9 hours and between “Greenwich” and “-Denver” you have a time difference of -7 hours.
Let’s say you are in Sebring, Florida, USA and you want the time in Le Mans, France.
1. Sebring follows the Eastern Time Zone / UTC-05:00 (defined by “-New York” on the bezel), then you need to rotate the bezel and put "-New York" on the hour marker just passed by the hour hand. If it's 12:30 in Sebring. Then you place "-New York" on the 12:00 marker.
2. Le Mans follows Paris time zone / UTC+01:00. Paris is a forward time zone (there is a little “+” in front), you read the bezel clockwise and you see that it indicates 18:00. So, it's 18:30 in Paris and Le Mans.

The Skindiver WT Professional is assembled near Besançon, France, continuing a Wolbrook & Douglas tradition dating back to the 1960s.

Each hand-wound movement is fitted with an all-red date disc and regulated (±15 s/day) by our watchmakers.