Grönefeld One Hertz – A Collector’s Journey | Quill & Pad

Grönefeld One Hertz – A Collector’s Journey | Quill & Pad

As ordinary perusers know at this point, my commitments to Quill & Pad range among ” Behind the Lens ” photograph highlights of extraordinary watches; ” You Are There ” writing about authority related occasions; and ” Why I Bought It ” articles that portray my deduction behind acquisition of individual watches.

The One Hertz by Tim and Bart Grönefeld

For this exceptional article, I have the delight of covering the superb Grönefeld One Hertz from every one of the three perspectives!

You are there: gathering the One Hertz

For a watch aficionado, and particularly for admirers of autonomous watch marks, it’s a little glimpse of heaven to meet the producers of the watches that we respect. With the Grönefeld siblings, it’s that delight times two.

Our story starts with meeting Bart Grönefeld at Düsseldorf air terminal in readiness to ride back to the Dutch town of Oldenzaal.

The Bart Grönefeld welcoming committee at Düsseldorf

After a wonderful drive, we got together with Bart’s sibling, Tim, and strolled to lunch, a scrumptious supper of nearby forte Kroketten (a potato dish) washed down with the primary cold lager of the day.

Oldenzaal town square with clock tower

The clock tower you see above filled in as the scene for a bit of the evening as we moved to the top to take in the view and to look at the instrument of the pinnacle clock, which right up ’til the present time is kept up by their dad, Sjef.

Bart and Tim Grönefeld with the chimes and bells, Oldenzaal clock tower

After lunch, it had returned to the workshop for a visit, joined by Dutch watch buddy and driving A. Lange & Söhne authority Edwin H. As relatives of a watchmaking family, Tim and Bart have a lot of magnificent watch-related things close by, including things like the Watchmaker’s Songbook shown below.

Anna one, anna two: Watchmaker’s Songbook

Edwin was sufficiently benevolent to catch a fix of us as Bart endeavored to enter my fly slacked skull with a portion of the specialized highlights of the One Hertz.

In the workshop with Tim and Bart Grönefeld (photograph graciousness Edwin H)

It’s consistently a rush to see parts in different phases of wrapping up. I especially love seeing close completed developments outside of their cases, as there is something in particular about being “not too far off” that even the most clear sapphire case back can’t reveal.

Stainless steel One Hertz connect during finishing

Limited release One Hertz development with gold-shaded plates

If you take a gander at the photograph above, you may see that this specific development looks somewhat abnormal. It is one of a restricted set created by the siblings with gold-completed plates that balance pleasantly with the spotless extensions above.

Finally, the decision time, as the glad fathers notice my pleasure at seeing my One Hertz for the first time.

GaryG sees his One Hertz interestingly (photograph Edwin H)

The fun didn’t stop there: we proceeded through supper and afterward a late-night container of wine with the siblings and Tim’s significant other, Maaike. At the very least when the time had come to creep up at my inn the following morning I realized I had made some fantastic memories with great hosts.

Why I purchased it

Using my buddy Terry’s scientific classification, this was quite plainly a “support” buy for me: an incredible watch that, maybe more significantly, was made by two extraordinary guys.

One unique added advantage was that they consented to make this piece for me with the blue dial, typically held for platinum pieces, yet for this situation coordinated with the lightweight titanium case.

Grönefeld One Hertz in titanium with blue dial

What I love about it

The terrible news is that I don’t have space here to list each of the 35 (no doubt about it) engaging highlights I have on my transcribed rundown of “loves” about this watch, however we should take out a couple of the biggies.

  • Let’s beginning with the self-evident: there’s that large second hand snapping across the dial with power. I’m a major devotee of discrete development in watches (retrograde hands, bouncing hours, quickly changing chronograph minutes and schedule dates, and so on), and this hopping second showcase is both the highlighted component of the watch generally and an incredible illustration of cutting the persistent development of time into discernible chunks.
  • I’m additionally a sucker for dimensionality in watches (like the Lange Double Split and practically anything by Greubel Forsey). You don’t need to flip the One Hertz over to get a three-dimensional show.

Deep dimensionality: multi-layer dial side of the Grönefeld One Hertz

  • The specialized plan of the free dead seconds complication is both novel and exceptionally cunning. The One Hertz development depends on two synchronized spring barrels taking care of two isolated (yet connected) developments – one for the hours and minutes and the other for the seconds.

This wasn’t not difficult to pull off actually, and at last a combination of highlights including connecting the two spring barrels, hacking the development during setting, using a section wheel-based framework to flip among “set” and “run” modes, and using diverse force levels for the two force trains was expected to make the watch work.

One of the incredible things about chatting with Bart and Tim was hearing the anecdotes about how they either viewed as a portion of these modern plan components ahead of time or created them after some time as they issue settled issues they encountered.

Movement side of the Grönefeld One Hertz

  • The communication between the two force trains is immensely smart too: a wheel with a smooth up-down wave is mounted on the fourth wheel pinion, tenderly shaking one side of a jeweled switch to and fro in a nonstop movement. The opposite side of the switch interfaces with a departure wheel measured to tick off time in one-second additions, synchronized with the ticking of sixths from the principle balance. These key interfacing parts are appeared in the photograph below.

Key parts: interfacing the force trains of the Grönefeld One Hertz

Interestingly, the sole capacity of the switch is to direct the arrival of force coming from the furthest side of the seconds escapement – no force is sent through the instrument and, accordingly the activity of the hop seconds, neither demands mileage on the wavy wheel nor disturbs the plentifulness of (or channels power from) the fundamental movement.

Dial detail of the Grönefeld One Hertz

  • It looks great! What’s more, the absolute prettiest contacts serve twofold obligation: the screw-mounted nameplates shroud another arrangement of screws that anchor the dial get together safely to the development. Tim and Bart really drew their ideal dial design first, and afterward sorted out some way to make the development coordinate it.

Overall, this watch meets my main measure: lucidness. Nothing appears to be glued on or needless; the plan highlights complement one another; and structure and capacity serve each other with excellence.

Coherent plan: the Grönefeld One Hertz

Behind the focal point: shooting the One Hertz

Happily, this watch is a pleasure to shoot from a picture taker’s point of view. The manly allure of the piece is not difficult to catch, and because of the profundity and strength of the dial-side highlights it’s conceivable to catch an assortment of looks by utilizing a combination of various watch positions and lighting.

In rest: surfaces and shades of the Grönefeld One Hertz

The shifting surfaces of the dial – remembering bended brushing for the foundation, scored subdials, and an iced look behind the force save and crown position pointer – and the wise utilization of dark accents and a reasonable area on the seconds section ring all make visual intrigue and furnish freedoms to play with light.

The blue tone additionally shows up very extraordinary under various lighting conditions, which is fun both in the light tent and when wearing the watch in or out of doors.

Straight on: the Grönefeld One Hertz in direct light

The just precarious part is that the scored subdials can cause a touch of moire (that “strobing” impact one in some cases sees with designed textures on TV), particularly when full-sized pictures are scaled back for web seeing. Yet, when the pictures are exploded back, the precise appearance of the scores returns.

I’ll leave you a few splitting shots. Everything I can say is that on the off chance that you at any point have the chance to follow my means, I can unequivocally recommend the journey!

The horological siblings: Tim and Bart Grönefeld

Above Oldenzaal: the Grönefeld One Hertz with the Grönefelds’ workshop in the background

Quick Facts Grönefeld One Hertz Classic

Case: 43 x 12.5 mm, red gold, platinum, or titanium

Dial: made in with earthy colored, ruthenium, white, and blue dials

Development: Caliber G-02, a mechanical hand-twisted development with free dead seconds, all scaffolds in hardened steel

Capacities: hours, minutes, and seconds; power hold; sign of crown position (set versus wind)

Cost (2015 retail): 60,000 euros (titanium); 73,500 euros (red gold)