OS Pilot Chrono Observer
8557TVDD-OB-a1
CHF 2,268.00
Tax included, free shipping
Artillery observation chronograph with self-winding movement. Soldiers dial with big minutes, day and date indication, superluminova luminous hands and figures. Limited edition. Only small quantities available.
24 months warranty
National Free shipping
Custom duties paid
14 days free returns
Secured Payment
INFORMATION
Dial & Functions
Case
Strap
Origin
Dial Color : black
Functions : Central Hour/Minute/Second, Day-Date, Chronograph
Luminescent Hands
Luminescent Markers
Case
Case Surface : matt
Case Back : glass back
Material : stainless steel
Diameter : 47.5 mm
Lug to Lug : 55.5 mm
Thickness : 17.2 mm
Lug width : 22.0 mm
Water Resistance : 3 ATM
Glass : sapphire crystal
Crystal shape : double-domed
Movement
Calibre : Valjoux 7750
Movement Type : Automatic
Power reserve : 46 hours
Number of jewels : 25
Frequency : 28800 bph
Shock Protection
Strap
Strap Material : leather
Lug width : 22.0 mm
Origin
Swiss Made
Contemporary Elegance:
Valjoux 7750 Automatic Movement
The Valjoux 7750 combines sleek design with mechanical precision. Its intricate workings are a subtle nod to the art of timekeeping
46 hours
Power reserve
46 hours, ensuring continuous performance without frequent winding, a reflection of sophisticated energy management within the movement.
25
Jewels
25 strategically placed jewels not only reduce friction for enduring precision, but also achieve a fine balance between mechanical efficiency and aesthetic appeal.
28800 bph
Frequency
A rate of 28800 bph beats per hour signifies a meticulous calibration for optimal balance between accuracy and energy use.
Shock protection
Designed with technical precision, the shock-resistant mechanism protects the balance wheel's delicate pivots, for enhanced durability in dynamic conditions
Functions
Central Hour/Minute/Second
Central Hours and Minutes offer the primary canvas of time, a standard from which the art of watchmaking explores more sophisticated and intricate complications
Day-Date
The day-date complication displays both the day of the week and the date of the month on the watch dial. A simple yet essential feature that adds practicality to the watch, marking the daily progression.
Chronograph
Developed to measure precise time intervals, the chronograph, introduced in the 19th century, has become a symbol of precision, essential for sports and aviation. Its functions are controlled via pushers, allowing for accurate time recording without interfering with the main time display
Specifications
Dial & Hands
Dial Color : black
Luminescent Hands
Luminescent Markers
Case
Case Surface : matt
Case Back : glass back
Material : stainless steel
Diameter : 47.5 mm
Lug to Lug : 55.5 mm
Thickness : 17.2 mm
Lug width : 22.0 mm
Glass
Glass : sapphire crystal
Crystal shape : double-domed
Movement
Calibre : Valjoux 7750
Type : Automatic
Power reserve : 46 hours
Number of jewels : 25
Frequency : 28800 bph
Shock Protection
Strap
Strap Material : leather
Lug width : 22.0 mm
Water Resistance
Water Resistance : 3 ATM
Complications & functions
Central Hour/Minute/SecondDay-DateChronograph
