Breguet 5857ST/12/5ZU Marine Dual Time SS / Rubber (34936)

34936 Breguet 5857ST/12/5ZU Marine Dual Time, 5857ST125ZU, stainless steel on a strap with a stainless steel deployant buckle, automatic movement (caliber 517f), GMT (second time zone dial at 6 o'clock), centered sweep seconds hand, silver guilloche dial with applied steel blue Roman and Arabic numerals, luminous hands and hour indicators, screw down crown, display back, water resistant to 100 meters, diameter: 42 mm, thickness: 12.5 mm, comes with an additional rubber strap, Like New with original box and papers dated November of 2014.


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More about Breguet 5857ST/12/5ZU Marine Dual Time SS / Rubber

This is a stainless steel Breguet Marine Dual Time 5857ST/12/5ZU. It has an alligator leather strap with a stainless steel double folding deployment buckle, and a scratch resistant sapphire crystal. It has a protected screw down winding crown, and an exhibition display sapphire case back secured with 6 screws, and engraved around the perimeter with "BREGUET 4289 AZ-HORLOGER DE LA MARINE, and a reference number. The 42mm diameter solid coin-edged case, downturned lugs, and stepped bezel, are polished. The center of the dial is silver wave guilloche, inside a brushed plain reserve with applied blued steel Roman numeral hour markers. Around the perimeter is a guilloche reserve with a dot minute/second scale, and luminous diamond shaped hour indices. It has blued Breguet steel minute and hour hands with luminous dots, and a blued center sweep second hand with a round Breguet counter balance. At 6 o'clock there is a large subsidiary dial for the GMT second time zone, with Arabic numeral hour markers around a plain, brushed reserve, and blued Breguet hands; around the perimeter is a dot minute scale with luminous dot hour indices. There is a silver-rimmed date aperture window at 6 o'clock, and an AM/PM subsidiary dial is at 3 o'clock, with a sunburst guilloche texture for 6am to 6pm (18 o'clock), and a linear wave guilloche texture for night, from 6pm until 6am. It has a 65-hour power reserve at full wind, and it's water resistant to 100 meters/330 feet. The 12.5mm thick case, dial, and movement are all signed.

This Breguet Marine Dual Time 5857ST/12/5ZU has a mechanical automatic self-winding Breguet caliber 517f movement. It's rhodium plated with fausses cotes embellishment, and it's constructed with 28 jewels, a shock absorber device, and an inverted in-line lever escapement. It includes a flat silicon balance spring, and the mechanism oscillates at a frequency of 28,800 vph (4 Hz).

The Breguet Marine Dual Time 5857ST/12/5ZU was introduced at the Basel World show in 2012.