Sellita caliber SW510 M b

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Brand:Sellita
Reference:SW510 M b
Base: Sellita SW500-1
Movement:Handwound
Display:Analog
Diameter:30.00
Jewels:23
Reserve:63
Frequency:28800
Chronograph:Chronograph
Hands:Hours, Minutes, Small Seconds
Sellita caliber SW510 M b

SW510 M b description

Manual winding - chronograph
Cam operated chronograph - two push-buttons
Hours, minutes and small second at 9 o'clock
60 seconds chronograph in the center
30 minutes counter at 3 o'clock
Optional: 15 minutes counter at 3 o'clock (SW511 M b)
12 hours counter at 6 o'clock
Manual winding
Stop second device
28'800 vibrations per hour (4 Hz)
23 jewels
Typical power reserve : 63 hours