Introducing
THE GRAND TONNEAU JUMP HOUR
The Grand Tonneau Jump Hour is now part of our permanent collection. The hour jumps precisely at the turn of the hour, shown on two rotating discs – a rare complication that first gained prominence in the early 20th century.
Its two-piece tonneau case is inspired by the barrel-shaped watches of the early 1900s, with multiple layers, contrasting textures and polished lugs that sit above the dial. A display caseback now shows the decorated movement and its custom rotor.
Four vertically brushed dials: Anthracite Black, Copper and Midnight Blue with a PVD coating, and Steel.
THE COLLECTION
SPECIFICATIONS
MODEL / CASE
DIAMETER
34 mm Excluding Crown
THICKNESS
9.7 mm
LUG TO LUG HEIGHT
45 mm
CASE
Two-piece tonneau case
CASEBACK
Display caseback, showing the decorated movement and custom rotor
MATERIAL
316L Stainless Steel
CRYSTAL
Sapphire Crystal
WATER RESISTANCE
5 ATM
MOVEMENT
MOVEMENT
In-house Modified Automatic Jump Hour (ST1721)
FUNCTIONS
Jump hour and minutes, shown on two rotating discs
WINDING
Automatic
FINISHING
Decorated movement with a custom rotor, visible through the display caseback
TESTING
Two-week in-house testing before assembly
STRAP
STRAP
Custom Integrated FKM Rubber Strap with micro adjustment
CLASP
316L stainless steel butterfly clasp with perlage finishing
DIAL
COLOURS
Anthracite Black, Copper, Midnight Blue and Steel
FINISH
Vertically brushed
COATING
PVD coated (Anthracite Black, Copper and Midnight Blue)