F. P. Journe Chronometre Bleu Tantalum Blue Dial UNWORN (28770)

28770 F.P Journe Chronometre Bleu, tantalum on the original blue strap with a tantalum Buckle, manual wind movement (FP Journe Caliber 1304), 56-hour power reserve powered by twin mainspring bnarrels, COSC, small seconds, metallic blue dial with arabic numerals, water resistant to 30 meters, diameter: 40mm, thickness: 8.6mm, Unworn with original Box and papers dated May 2018.

SOLD

See similar watches in-stock Have a watch like this? Sell or trade with us

For current in stock inventory please go to our website www.europeanwatch.com

We ship FEDEX overnight in US, or to Europe by FEDEX International Priority

If you have a watch that you are interested in selling or trading, please contact us.

1-888-393-8463

More about F. P. Journe Chronometre Bleu Tantalum Blue Dial UNWORN

This is a Tantalum F.P Journe Chronometre Bleu, with an alligator leather strap, a matching Tantalum tang buckle, and a scratch resistant sapphire crystal. It has an exhibition sapphire display case back secured by 5 screws, engraved with "Invenit et Fecit," Journe's motto of "He invented it and he made it. "The 39mm diameter solid three-body case, downturned lugs, and rounded bezel are polished. The blue dial is polished to a mirror finish, with luminous hands and radial Arabic numeral hour markers, with an outer railroad-style minute track. It has a subsidiary small seconds dial between the 7 and 8 o'clock positions. It includes the Certified Official Swiss Chronometer (COSC) rating. It has a 56-hour power reserve and it's water resistant to 30 meters/100 feet. The 8.6mm thick case, dial, and movement are all signed.

The mechanical manual winding F.P. Journe caliber 1304 movement is constructed of 18K rose gold, including the base plate and bridges. They have “fausses côtes” embellishment. The main plate features a guilloche grain d’orge (barleycorn) pattern, and the gold bridges are finished with Geneva stripes and polished bevelled angles. It has twin barrels, 22 jewels, a shock absorber mechanism, and a straight-line lever escapement. It includes a 4-arm balance with 4 adjustable timing weights, and the connecting train is hidden underneath the dial. The monometallic balance is adjusted in 6 positions, with a self-compensating free-sprung balance spring. The balance has four inertia weights, a flat Anachron micro-flamed spring, and mobile stud holders. The mechanism oscillates at a frequency of 21,600 vph (3 Hz).

Tantalum metal is dark grey with blue overtones; it's nicknamed "black chrome." It's difficult to utilize in watchmaking because of its very high density, and extremely high fusion temperature of 3,800 degrees F. It's non-allergenic with tremendous resistance to corrosion, and it's as heavy as platinum; it takes approximately five times longer to make a tantalum case than it does to make a platinum case. This watch was introduced in 2009.