THE JOURNAL
8520
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Basic information
- Movement introduction:
Full automatic mechanical winding; Co-Axial escapement; twin barrels; power reserve of 60 hours; COSC-certified chronometer.
- Movement functions:
Hour, minute and sweep seconds hands; date
- Diameter and thickness:
20 mm, 5.3 mm
- Rubies:
28 jewels
- Movement balance wheel:
Free-sprung balance with adjustment screws
- Movement frequency:
25200 vph
- Balance spring:
Silicon
- Remarks:
White gold, Geneva stripes “ arabesque ” bridges and rotor; rhodium-plated; barrel, balance wheel and black screws
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