Early this spring Grand Seiko launched the Ref. SLGH002 — a limited edition of 100 pieces cased in 18K yellow gold and featuring a new haute horology movement — to celebrate the brand’s 60th anniversary. The motion, with a brand new escapement that riffs on the direct impulse escapement, represents the following era of Grand Seiko’s high-beat calibres and now makes an look in a extra accessible (nicely, comparatively talking) metal cased-version. With out additional ado, right here is the brand new Grand Seiko Ref. SLGH003 restricted version.
The star of the present is, in fact, the brand new Calibre 9AS5. It incorporates a new escapement whereby the escape wheel transmits energy on to the stability eschewing the lever escapement of typical actions. Nevertheless, not like the co-axial escapement, the direct impulse occurs solely in a single path of the stability wheel’s movement. When the stability wheel strikes in the wrong way, it transmits the impulse by a pallet fork like in conventional actions. Grand Seiko calls this a Twin Escapement. The result’s higher power effectivity and reduces the wear and tear and tear of components used within the watch’s regulation organ.
The stability wheel additionally makes use of an overcoil hairspring versus the extra typical flatspring. The large profit to the person right here is isochronism and higher resistance to shock and friction. Calibre 9AS5 can be 15 % slimmer than current in-house excessive beat actions, due to the revolutionary horizontal structure of the barrel and equipment trains. The motion has a precision fee of +5 to –3 seconds a day and an influence reserve of 80 hours. As you’d anticipate from Grand Seiko, the motion is hand-finished to a really excessive customary.
The design of the metal Ref. SLGH003 is equivalent to that of the yellow gold Ref. SLGH002. It has broad lugs and the case is fitted with a box-shaped sapphire crystal. Whereas nearly all of the case has a brushed end, the broad faceted bezels characteristic mirror-polished sides. The “anniversary blue” dial has the Grand Seiko emblem, facetted indexes and the attribute dauphine palms, now redesigned similar to within the SLGH002. The hour hand is wider now and has a groove working by the center.
The watch is paired with an identical metal bracelet; the folding clasp has an 18k gold badge carrying the Grand Seiko initials. Restricted to 100 items, the watch can be out there from December this 12 months and is priced at €10,000.