SIDUNA Chronometry

Scandinavian chronometry, since 1929

[SIDUNA Chronometry @sidunawatch]

After 10 years of working with private labels from Hong Kong and Mainland China, the team behind Techné (established 2009) decided to relaunch the Swissest Nordic brand SIDUNA. Find out more about our Made in Europe mechanical watches at https://t.co/WCOmRwzWb5

[SIDUNA Chronometry @sidunawatch]

In 2019, SIDUNA started to design, assemble and ship Made in Europe automatic chronographs from their workshop. Who can do more, can do less, so this year, they are collaborating with Techné on a Soprod P024 military inspired limited edition. Find more at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

In mid May, we finally took delivery of Soprod P024 movements for our rendition of the American MIL-W-3818B general purpose watch. This collection is the result of a synergy between the brands Techné (established in 2009) and Siduna (established in 1929).
https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

Fitting of dial and hands on the Soprod P024 Swiss Made movements in our European workshop. The assembly and testing is carrier in house and qualifies for the Made in Europe label.
Find out more about our Made in Europe, general purpose watch; at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

The Soprod P024 is used by prestigious Swiss brands such as Nivada Grenchen. It is an 11½ lines caliber based on the ETA 2824-2 architecture, and it is an 100% fit in.
Find out more about our Made in Europe watch at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

We regulate the Soprod P024 in our workshop in three positions: dial up (not shown on the pictures), 12h down and 3h down; in order to replicate the natural positions of the wrist during the day.
Find out more about our Made in Europe watch at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

Screwing back the Soprod's P024 rotor is the finishing touch before closing the watch, after having assembled and regulated the movement on a bench. The rotor is removed during those steps for convenience, and to allow easy fine-tuning. Find out more at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

Although it seems like a shortcut from a qualitative perspective, a fitting ring made in nylon 6 instead of nickel plated brass will act as a bumper, by taking in shocks and vibrations instead of directly transferring them to the movement.
Find more at https://t.co/PTsMoXG8c2

[SIDUNA Chronometry @sidunawatch]

The rule of thumb to get your screw tight enough without forcing it, it to go until it stops, and then turn by an additional angle that roughly corresponds to the slit's width.
Find out more at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

On a bright sunny day, you might have noticed how much dust flies around indoors. We go through an extensive process that involves a hand held air blower, a watchmaker's vacuum brush and all purpose watchmaker's Rodico paste. Find out more at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

After working with various case back openers, we settled for an elastomer version, that creates enough friction to screw the case back in, until the slipping point. The great benefit of this opener is that the metal never gets scratched, even if the tool slips.

[SIDUNA Chronometry @sidunawatch]

We receive our cases already tested for water resistance, but we run a quick vacuum test after assembly in our European workshop to make sure that everything is air-tight.
Find out more about our limited edition, Made in Europe, general purpose watch; at https://t.co/PTsMoXGG1A

[SIDUNA Chronometry @sidunawatch]

Our straps are made with Tuscan calf leather, and we punch them in-house to adapt quick release German made spring bars from Beco Technic, our supplier of choice for watchmaker's tools and consumables.

[SIDUNA Chronometry @sidunawatch]

C. Thunderbolt

[SIDUNA Chronometry @sidunawatch]

In our first two polls about refreshing our 2019 Aviation chronograph, respondents showed a preference for a 30 minutes register at 3 o'clock, combined with a 12 hours register at 6 o'clock.

Here, we'd like to get your opinion on three different dial artworks. Images in comment.

[SIDUNA Chronometry @sidunawatch]

B. Grandtourer

[SIDUNA Chronometry @sidunawatch]

A. Aéronavale

[SIDUNA Chronometry @sidunawatch]

The architecture of the Sellita SW500/510 is based on the ETA/Valjoux 7750, but it bumps the power reserve from 48h to 62h.

If we were to dust off our dial design, which registers layout should we start from?

[SIDUNA Chronometry @sidunawatch]

@AuntieScience @Beau_Mogford @vernonkay Yeah that’s weird. It’s not like there is something called the 27 club or something…