JR1090 in-house manufactured self-winding mechanical movement Calibre 11 1/2’’’, 32 jewels, frequency 28.800 vib./hour (4 Hz) 48 hours minimum power reserve Small seconds at 9 o’clock, date window at 4.30 o’clock Steel case, diameter 42 mm, height 10.75 mm Curved, anti-reflective sapphire crystal Sapphire glass case-back Case-back fastened with 6 screws Water-resistant to 30 m Poli-lacquered sunburst effect brown dial Alligator strap with steel folding buckle
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