Today, impartial Biel/Bienne-based watch manufacture Armin Strom has launched a brand new purple model of its Gravity Equal Drive Final Sapphire.

The Gravity Equal Drive Final Sapphire Purple is delivered in the identical 41 mm x 12.65 mm (48.09 lug-to-lug) chrome steel case, with the identical gray-toned sapphire crystal off-center dial and small seconds subdial, because the authentic model.

What’s new is the background of the openworked dial, a purple guilloché-engraved mainplate by Kari Voutilainen. Utilizing a rose engine lathe, operated by hand, the guilloché engraved motif is given an intricate repetitive barley grain sample (and if the strain or management of the land is off, your complete dial needs to be scrapped and began from scratch), made on the Voutilainen workshops. Upon completion, the dials are transported to the Armin Strom manufacturing facility and handled with a purple 3D PVD end.

Armin Strom Gravity Equal Force Ultimate Sapphire Purple

Horologically, the motion incorporates a patented equal-force transmission built-in into the mainspring barrel, a energy reserve indication, and a singular micro-rotor design. This represents the primary automated watch with an equal drive transmission built-in immediately into the mainspring barrel. Armin Strom says, “It offers constant energy transmission to the regulating organ, making certain unwavering precision all through the watch’s autonomy. The ability reserve indicator types a part of the barrel, which is solely seen from the dial aspect, reverse the micro-rotor with a singular click on system that includes two springs for better-winding effectivity.”

Ending is high-end, with bridges which have machine-beveled edges which might be polished by hand, black polished screws, polished countersinks, perlage, and numerous forms of graining, (straight or round), in addition to Geneva stripes on the three-quarter bridge seen via the caseback.

Armin Strom Gravity Equal Force Ultimate Sapphire Purple

“One of many Gravity Equal Drive’s most distinctive components is the triplet of darkish gray ruthenium-plated bridges that occupy the right-hand portion of the open show. Impressed by the finger-style bridges present in pocket watches, it takes as much as a whole day for these bridges to be embellished by hand. First, the undersides are given a matt end, after which the edges are given a straight-graining end by fastidiously sliding them on an abrasive paper to supply steady, shimmering fantastic traces. Then, the inside and outer chamfers of the bridges are beveled with more and more fantastic recordsdata after which completed with a flash polish utilizing regionally sourced gentian wooden to take away even the best traces. Lastly, a straight-graining end is utilized to the highest aspect for final radiance,” in line with Armin Strom.

The Gravity Equal Drive Final Sapphire Purple (Ref. AS/ID ST24-GEF.SA.AC.M.A7.FC) comes with a light-weight grey nubuck leather-based strap with purple distinction stitching and keepers (out there with a stainless-steel pin buckle or folding clasp) and is restricted to 25 items yearly. The retail value is $28,900.

Be taught extra at Armin Strom.


Photographs by Armin Strom.