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 subsequent 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 includes a new escapement whereby the escape wheel transmits energy on to the steadiness eschewing the lever escapement of standard actions. Nevertheless, not like the co-axial escapement, the direct impulse occurs solely in a single route of the steadiness wheel’s movement. When the steadiness wheel strikes in the wrong way, it transmits the impulse via a pallet fork like in conventional actions. Grand Seiko calls this a Twin Escapement. The result’s better vitality effectivity and reduces the damage and tear of components used within the watch’s regulation organ.
The steadiness wheel additionally makes use of an overcoil hairspring versus the extra standard flatspring. The large profit to the consumer right here is isochronism and higher resistance to shock and friction. Calibre 9AS5 can be 15 % slimmer than present in-house excessive beat actions, because of the modern horizontal format of the barrel and equipment trains. The motion has a precision price 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 similar to that of the yellow gold Ref. SLGH002. It has large lugs and the case is fitted with a box-shaped sapphire crystal. Whereas nearly all of the case has a brushed end, the large faceted bezels function mirror-polished sides. The “anniversary blue” dial has the Grand Seiko emblem, facetted indexes and the attribute dauphine palms, now redesigned identical to within the SLGH002. The hour hand is wider now and has a groove operating via 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 will probably be accessible from December this 12 months and is priced at €10,000.