C-type 43mm Chronograph COSC

Features

Case

Diameter 43.00 mm
Height 16.00 mm
Crystal Antireflective sapphire crystal
Material Stainless steel
Water-resistance 300 meters (30 ATM)
Lug width 22.00 mm
Crown Stainless steel, screwed down

Movement

Calibre PP 1600 (ETA 7750 base)
Diameter 30.00 mm
Height 7.90 mm
Jewel 25
Oscilliator Stainless steel oscillating weight decorated
Power reserve 46 hours
Movement Automatic
Functions Hours, minutes, small second, day/date, chronograph : 12 hours counter, 30 minutes counter, central second hand

Dial

Color Black
Details Super luminova indices

Strap

Material Rubber
Width 22.00 x 20.00 mm
Buckle Professional stainless steel folding buckle

Other

Limited edition -
Certification COSC

Description

Each officially COSC-certified chronometer is identified by a serial number engraved on its movement and a certification number given by the COSC. Each uncased movement is individually tested for fifteen days, in five positions, at three different temperatures. The movements are fitted with a second’s hand and the automatic winding mechanisms are disengaged for the tests. Measurements are made daily with the aid of cameras. Based on these measurements, seven eliminatory criteria are calculated, each of which must be met. The testing protocol requires daily winding at precisely the same time each day. Over a million official chronometer certificates are delivered each year, representing only 3% of the Swiss watch production. To earn chronometer certification, a movement must not only be made from the highest quality components but also be the object of special care on part of the finest watchmakers and timers during assembly. Of the Swiss-made mechanical watches, approximately 5% are chronometer-certified by the COSC.

Price

6'000.00 CHF