TECHNICAL DETAILS

MOVEMENT:
mechanical hand winding, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock.
Frequency: 21,600 vibrations per hour. Power reserve: 42 hours. 17 jewels.
FUNCTIONS:
hours, minutes.
CASE:
stainless steel AISI 316L, distinguishing patented crown on left side. Serial number plate fixed on the side of the case.Diameter 40 mm.
Bezel ring in polished tungsten. Thickness 9,50mm.
BACK:
sealed with seven external screws, opening U-shaped sapphire fumé crystal with movement view.
DIAL:
three superimposed dials, the upper one in black with luminous beige hands and markers. Visible ruby.
CRYSTAL:
sapphire crystal with anti-reflective coating.
WATER RESISTANCE:
100 mt, 10 ATM.
STRAP:
handmade and hand-finished dark brown alligator leather. Stainless steel tongue buckle. Width: 20/18 mm.

TECHNICAL DETAILS

MOVEMENT:

automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock.
Laser cut rotor as by U-BOAT specifications.
Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 42 hours. 21 jewels.
FUNCTIONS:
date, hours, minutes, seconds, 24h indicator.
CASE:
stainless steel AISI 316L, distinguishing crown on left side, with a patented protective device. Serial number plate
fixed on the side of the case. Diameter 45 mm. Bezel ring in polished  tungsten. Thickness: 11,70mm.
BACK:
sealed with seven external screws, opening U-shaped sapphire fumé crystal with movement view.
DIAL:
two superimposed dials, the upper one in black with luminous beige hands and markers. Visible ruby.
CRYSTAL:
sapphire crystal with anti-reflective coating.
WATER RESISTANCE:
100 mt, 10 ATM.
STRAP:
handmade and hand-finished black alligator leather. Stainless steel tongue buckle. Width: 20/20 mm.

TECHNICAL DETAILS
Crown release system (patented) at 8 o’clock for easy time and date setting.
MOVEMENT:
automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock. Laser cut rotor
as by U-BOAT specifications. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels.
FUNCTIONS:
hours, minutes, seconds, date, 24h indicator, bidirectional bezel 24h graduated, crown release lever.
CASE:
bronze, naturally aged, distinguishing crown on left side, with a patented protective device. Diameter 46 mm.
Serial number engraved on a small plate fixed on the side of the case. Bezel lockable with a lever on the right side of the case
BACK:
sealed with 7 external screws, small window U-shaped with fumé sapphire showing the balance wheel movement.
DIAL:
three superimposed dials with visible ruby, brown.  Arabic numerals, with bronzed brushed frame and superluminova treatment.
Bronzed hands, hand brushed and superluminova treated.
CRYSTAL:
sapphire, anti reflective treatment.
WATER RESISTANCE:
100 mt, 10 ATM.
STRAP:
hand made and hand finished calf leather, tongue buckle in bronze. Width : 22/22 mm.

TECHNICAL DETAILS

Crown release system (patented) at 8 o’clock for easy time and date setting.
MOVEMENT:
automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock. Laser cut rotor
as by U-BOAT specifications. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels.
FUNCTIONS:
hours, minutes, seconds, date, 24h indicator, bidirectional bezel 24h graduated, crown release lever.
CASE:
bronze, naturally aged, distinguishing crown on left side, with a patented protective device. Diameter 46 mm.
Serial number engraved on a small plate fixed on the side of the case.
Bezel lockable with a lever on the right side of the case
BACK:
sealed with 7 external screws, small window U-shaped with fumé sapphire showing the balance wheel movement.
DIAL:
three superimposed dials with visible ruby, green color.  Arabic numerals, with bronzed brushed
frame and superluminova treatment. Bronzed hands, hand brushed and superluminova treated.
CRYSTAL:
sapphire, anti reflective treatment.
WATER RESISTANCE:
100 mt, 10 ATM.
STRAP:
hand made and hand finished calf leather, tongue buckle in bronze. Width : 22/22 mm

MOVEMENT:
Automatic mechanical chronograph modified and personalized at U-Boat specifications for date display and stem position at 9 o’clock. Frequency: 28.800 vibrations per hour, 4 Hz. Power reserve: 48 hours. 25 jewels. Height: 7 mm.

FUNCTIONS:
Hours, minutes, small second, chronograph 60 s, counter 30 minutes and 12 h. Date window at 9 o’clock.

CASE:
In titanium, with subsequent treatment of IP Black coating. Diameter: 47 mm. Case thickness: 18,90 mm. Watertight on axis reset and assured charge by PTFE gasket. Bi-directional rotating bezel, in titanium, lockable with a lever on the right side of the case. Fixing of revolving bezel by 3 screws encapsulated in the back case; the bezel removal, for maintenance and washing obtained by removing the three screws, does not affect the watch watertight. 12 o’clock ball indicator on the bezel made of ceramic, minutes indicators in gold 18 K. Crown, chrono button, screws on the bezel, bezel release lever in rose gold, 18 K, gold total weight around 15,40 gr.

BACK:
In titanium, fixed on case with 6 encapsulated hexagon screws in steel.

DIAL:
Two superimposed dials, one in rose gold 18 K and one in matt black, laser cut. Baton hands.

CRYSTAL:
Sapphire glass.

WATER RESISTANCE:
300 mt, 30 ATM.

STRAP:
Hand made and hand finished alligator black leather, square scale, tongue titanium buckle, tongue of the buckle in 18 K rose gold. Width: 23/23 mm. Fastened to the case with screws.

ADDITIONAL FEATURES:
All engravings on this piece are carried out by mechanical pantograph. The resistance of this piece is tested in an autoclave at 40 bar before the final assembly is completed.
The winding crown was built in two parts: one is attached to the movement stem whilst the other is hinged to it with a pivot.
This gives a flexible joint configuration which allows the crown to protrude considerably from the watch itself for winding and setting, yet returning it to a protected, hidden position, diminishing the side clutter when in action.
The water-tight crown protection attached to the stem is assured by a clipping gasket in energized Polytetrafluoroethylene and by an o-ring twin-


MOVEMENT:
For ref. 6157 and 6471 automatic mechanical, personalized to U-Boat specifications for stem to be positioned at 9 o’clock. Power reserve: 40 hours.

FUNCTIONS:
Hours, minutes, small seconds.

CASE:
In titanium, Diameter: 47 mm or 53 mm. Charge axis, stop crown lever, stop glass handles, bezel runners, andstrap pivots in steel AISI 316. Watertight on axis reset and assured charge by PTFE gasket. Bi-directional rotating bezel, in titanium, lockable with a lever on the right side of the case. Fixing of revolving bezel by 3 screws encapsulated in the back case; the bezel removal, for maintenance and washing obtained by removing the three screws, does not affect the watch watertight. 12 o’clock ball indicator on the bezel made of ceramic.

BACK:
In titanium, fixed on case with 6 encapsulated hexagon screws in steel.

CRYSTAL:
Sapphire glass.

DIAL:
Matte black, markers treated with superluminova (peach color). Baton hands, treated with superluminova.

WATER RESISTANCE:
300 mt, 30 ATM.

STRAP:
Hand made and hand finished calf leather, carefully selected and processed following the traditional artisan handcrafted techniques used in the 1800’s, which give the strap a naturally distressed feel and look. Tongue buckle in titanium.

ADDITIONAL FEATURES.
This astonishing and exceptionally rare model was designed with a reinvented hand winder made from the same Grade-5 Titanium that was used for the back case, case and bezel.
All engravings on this piece are carried out by mechanical pantograph, including the brass dial with plate located, which is galvanised and finished with a bright enamel paste.
The pressure resistance of this piece is tested in an autoclave at 40 bar before the final assembly is completed.
The U-42’s winding crown was built in two parts: one is attached to the movement stem whilst the other is hinged to it with a pivot.
This gives a flexible joint configuration which allows the crown to protrude considerably from the watch itself for winding and setting, yet returning it to a protected, hidden position, diminishing the side clutter when in action.
This type of crown is imperative under certain conditions as it is absolutely necessary for activities during which gloves are required such as underwater operations and environmental practice at Arctic temperatures.
The water-tight crown protection attached to the stem is assured by a clipping gasket in energised Polytetrafluoroethylene and by an o-ring twin-


MOVEMENT:
automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock.
Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels.
FUNCTIONS:
date, hours, minutes, seconds, 24h indicator, graduated uni directional bezel, screw down crown.
CASE:
stainless steel AISI 316L, satin hand finish, distinguishing crown on left side, with a patented protective device.
Serial number plate fixed on the side of the case. Diameter 46 mm.
BACK:
sealed with seven external screws.
DIAL:
three superimposed dials, the upper one in black with luminous beige hands and markers.
CRYSTAL:
sapphire crystal, anti-reflective coating, magnifying lent on the date window.
WATER RESISTANCE:
300 mt, 30 ATM.
STRAP: 
black strap, in rubber with lining in calf with Kodiak water repellent treatment.
Stainless steel tongue buckle. Width: 22/22 mm.

CASE:
The two-piece case (middle and back) is joined by screws and has no bezel, which is replaced by the glass itself; made from titanium grade 5. Special titanium screw crown positioned at 9 o’clock, designed and manufactured according to U-BOAT technical specifications. The release mechanism on the right side of the case provides easy access to the dial and component parts. A special titanium ring guarantees an airtight seal and total water resistance. The ring is also fixed in place with 2 screws on the lugs for greater resilience and security. Titanium screw crown made to an exclusive U-Boat design. Diameter, 50 mm. Thickness, 23.5 mm. Overall dimensions, 63 mm. Case back attached by 4 screws for rapid access to the movement for adjustment purposes.

MOVEMENT:
U-28 movement.

DIAL:
Three-level dial with SuperLuminova and date indicator at 9 o’clock.

CRYSTAL:
Thick sapphire glass.

WATER RESISTANCE:
10 ATM 100 metres.

STRAP:
Strap made from leather selected and treated according to U-Boat specifications and aged naturally without technical forcing. Fully hand worked waxed cotton finishing with laser engraved.Tongue buckle.


MOVEMENT:
Automatic mechanical, modified and personalized to U-Boat specifications for stem position at 9 o’clock. Height: 4,60 mm. 25 jewels. Power reserve: 40 hours.

FUNCTIONS:
Hours, minutes, seconds, date at 4 o’clock. Frequency: 28.800 vibrations per hour, 4 Hz.

CASE:
In steel with subsequent IPB coating. Distinguishing crown on the left side, with a special protective device and helium escape valve, serial number engraved on a steel plate, set on the left hand side of the case. Diameter: 47 mm.

BACK:
Screwed in, “Skeleton” personalized U-Boat rotor.

DIAL:
Two superimposed dials, one in blue color luminova and the other one cut, treated with composed opaque black pigments. U-1001 caligraphy in high relief and raised. Luminova blue hands.

CRYSTAL:
High quality sapphire, scratchproof, flat.

WATER RESISTANCE:
1001 mt, 100 ATM.

STRAP:
Black, rubber hypoallergenic with plate in steel and subsequent IPB coating, deployante buckle. Width: 23/22 mm. Fastened to the case with screws.


TECHNICAL DETAILS

MOVEMENT:
Automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock. Laser cut rotor as by U-BOAT specifications.

FREQUENCY:
28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels.

FUNCTIONS:
Hours, minutes, seconds, date.

CASE:
Stainless steel AISI 316L, satin hand finish, distinguishing crown on left side, with a patented protective device. Diameter 47 mm. Serial number engraved on a small plate fixed on the side of the case.

BACK:
Screwed in, fumé glass showing the skeleton balance wheel.

DIAL:
Three superimposed layers, beige or black with visible ruby. Arabic numerals. Luminous hands, numbers and markers.

CRYSTAL:
High quality sapphire, anti reflective treatment.

WATER RESISTANCE:
100 mt, 10 ATM

STRAP:
Hand made and hand finished calf leather, tongue buckle in steel. Width: 23/22 mm.
An extra black strap, in rubber with lining in calf with Kodiak water repellent treatment is included.