JR1090 in-house manufactured self-winding mechanical movement Calibre 11 1/2’’’, 32 jewels, frequency 28.800 vib./hour (4Hz) 48 hours power reserve Small seconds at 9 o’clock, date window at 3 o'clock Steel case, diameter 42 mm, height 10.75 mm Bezel set with 58 diamonds, 1.16 carat Convex anti-reflective sapphire crystal Sapphire glass case-back Case-back secured with 6 screws Water-resistant to 30 m White mother-of-pearl dial, set with 12 diamonds Alligator strap with steel folding buckle
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