Bulgari Grande Sonnerie Perpetual Calendar

Impeccable

A Grand Complication model housing a wealth of superlatives, the new Bulgari Grande Sonnerie Perpetual Calendar, Daniel Roth Collection, boasts a 923-part movement that sounds the Westminster chime while also providing full calendar indications. The creation of this timepiece requires the steady hand of a master-watchmaker for a full year; 20 different functions are resident within its mechanical architecture. Bulgari claims this watch to be in the 10 most complicated watches ever presented, though I have not verified this claim (lazy Thursday). It is undoubtedly a majestic looking watch, with the sounds of the Westminster chime making it a desirable object for the serious watch connoisseur.

Bulgari Grande Sonnerie Perpetual Calendar

Pink Gold case, crown at 9 oclock for time adjustments; strike/silence and Grande & Petite Sonnerie selectors at 10 and 7 oclock respectively, minute repeater pusher at 9 oclock

Dial
18-carat pink gold with alternating lacquered finish, opaline anthracite & snailed surface treatment, openworking; semi-transparent sapphire discs indicating the days and months.

Movement
Manufacture movement, Cal. DR 5307, comprising 923 parts & 82 jewels.
Grande Sonnerie with Westminster chime, 4 hammers, Perpetual Calendar, Minute Repeater, Tourbillon & Moon Phases.
Indication of the hours and minutes, day of the week and months, leap years, moon phases and date; double power-reserve indication for the movement and the striking mechanism

Complications and functions

Westminster Carillon
Four gongs
Grande Sonnerie
Petite Sonnerie
Minute Repeater
Silence mode
Tourbillon
Perpetual Calendar
Leap Year Indicator
Month indicator
Weekday indicator
Date indicator
Moon phases
Automatic winding for movement and striking system
Silent centrifugal governor
Power reserve indicator for movement (48h)
Power reserve indicator for striking system (28h in mode Little )
Secured striking mode (during striking, the time setting system is disconnected)
Secured time setting (during time setting, the striking system is disconnected)
Secured striking system (the minute repeater is disconnected during striking in passing and vice-versa)
Striking mode selector chimes/silence (rotating water resistant selector with indication)
Striking mode selector little/grand (rotating water resistant selector with indication)

Related posts:

  • Bulgari Grande Lune
  • Bulgari Daniel Roth Tourbillon Lumiere Skeleton
  • Bulgari Daniel Roth Tourbillon Chrono Rattrapante


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