Blancpain X Fathoms 300M Diver with Depth Gauge (Ref. 5018-1230-64A) Swiss

The new Blancpain X Fathoms (Ref. 5018-1230-64A) automatic diver is one of the most complicated mass-produced mechanical divers ever. Officially presented yesterday in Dubai, the new timepiece offers you guaranteed 300 meters of water resistance, as well as an innovative mechanical depth gauge.

Rated for whole 90 meters (its closest rival, the 2009 Jaeger-LeCoultre Master Compressor Diving Pro Geographic Navy SEALs watch has a depth meter which is good for only 80 meters,) the new depth meter not simply measures the minimum point of your descent. The gauge is also capable of storing the point in its mechanical memory.

More than that, realizing the fact that an average recreational diver rarely descents deeper than 30-40 feet below the water surface, the depth gauge has an extra hand that indicates depths from 0 to 15 meters with an accuracy of just 30 centimeters (around 1 ft.)

Blancpain X Fathoms 300M (Ref. 5018-1230-64) automatic diving watch

To make the Blancpain X Fathoms (Ref. 5018-1230-64) even more usable, there is also a simple 5-minute chronograph indicator with retrograde display. Located between 10 and 11 hours, it is designed to measure time of a decompression stop. The function is operated with a special push-piece, which is ergonomically placed at 10 o’clock.

Although the dial layout of the watch looks somewhat complicated at first sight, I must admit that display is so well-designed that getting used to it requires just a couple of minutes.

As you can see on the photos, the main depth scale is calibrated in such a way as to display 30 meters at 3 hours, 60 meters at 6 hours and, finally, 90 meters at 9 o’clock.

Blancpain X Fathoms 300M (Ref. 5018-1230-64) dial, detail

More than that, the chunks of information are separated with color of luminescent substance, where light green is reserved for time, blue for the 15 meter scale and decompression chronograph, and orange for the 0-90 meter scale. After a period of time your brain will simply filter out the unnecessary information and absorb only that, which is needed at any given moment.

It must be noted that the new Blancpain X Fathoms is the first diving watch that uses so called “amorphous metal” for its depth gauge membrane. Thanks to its high elasticity, the material is highly resistant to wear and also guarantees higher precision of measurements.

Designed primarily as a tool watch (by the way, Blancpain explicitly states that this IS NOT a substitution for a professional diving computer, but only a companion to it,) the new X Fathoms Ref. 5018-1230-64 is presented in a HUGE case.

Blancpain X Fathoms 300M (Ref. 5018-1230-64) front view

Crafted from satin-brushed titanium, the case is almost 56 millimeters in diameter and whole 24 millimeters (almost an inch!) thick.

The reason for such heroic proportions is not only that the watch is supposed to be worn with bulky diving equipment, but also because the Caliber 9918B automatic movement is really huge.

According to official specification, the movement is 36 millimeters in diameter and 13 millimeters in height. Compare that to the original dimensions of 30.60 x 5.65 mm of the Blancpain Caliber 1315 movement (it also powers the impressive Blancpain 500 Fathoms Cannes 2009 Limited Edition and the Blancpain Fifty Fathoms “Tribute to Fifty Fathoms” Ref. 5015B-1130-52 model) that the 9918B is based on!

Probably, such an impressive gain in size comes courtesy of the depth gauge module that needs some space for the amorphous metal membrane to be squeezed by the pressure of water.

See also: Favre-Leuba Bathy V.2 mechanical depth meter diving watch

Blancpain X Fathoms 300M (Ref. 5018-1230-64) case back

Blancpain X Fathoms 300M (Ref. 5018-1230-64) case back, detail: depth meter openings

Blancpain X Fathoms 300M (Ref. 5018-1230-64) setting crown, detail

Blancpain X Fathoms (Ref. 5018-1230-64) dial glowing in the dark

Photos: Blancpain

Blancpain X Fathoms 300M Diver with Depth Gauge (Ref. 5018-1230-64A) specification

Price: $40,500 (MSRP)
Movement: Automatic, Blancpain caliber 9918B (base Blancpain Caliber 1315), 385 components, in-house, Swiss Made
Number of jewels: 44
Movement frequency: 28,800 vph
Functions: Hours, minutes, seconds, 5-min chronograph, mechanical depth meter
Power reserve: 120 hours (5 days)
Case material: Titanium
Shape: Round
Size: 55.65 mm
Case height: 24.00 mm
Lug width: 22.60 mm
Dial: Black
Numerals: Arabic
Hour markers: Luminous
Hands: Luminous
Water resistance: 300 meters
Strap: Injected rubber strap. Made of 14 separate parts for a perfect fit
Crystal: Sapphire, antireflective
Back: Solid with three openings for the depth meter membrane

Previous post:
Sinn EZM 10 “Einsatzzeitmesser” Pilot Chronograph

Next post:
Omega Seamaster Aqua Terra Golf (Ref.