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Evaluation Grand Seiko Evolution 9 Hello-Beat Inexperienced Birch SLGH011 (Value)

In early 2021, Grand Seiko offered a watch that can grow to be, for sure, one of many model’s most talked-about fashions in a few years. And rightfully so, since the White Birch SLGH005 is an impressively lovely watch, with superior motion and superior execution. It additionally someway turned the cornerstone of the newly developed Evolution 9 assortment. Earlier this yr, GS launched one other model, nearly an identical at first but pretty totally different, the Spring Drive White Birch SLGA009. And to make it even higher, there’s been a brand new mannequin within the making, and that’s the really engaging Grand Seiko Evolution 9 Inexperienced Birch SLGH011 we’ll be exploring immediately.


The White Birch SLGH005 is a watch that we’ve already extensively reviewed right here, and additionally filmed right here. We’ve additionally reviewed its Spring Drive counterpart right here, the SLGA009, which feels at first sight to be only a motion replace however really exhibits a number of variations on the dial and case in comparison with the basic White Birch. You may learn all these articles first, simply to your personal tradition, however however, we’ll transfer again a bit on the subject so that you can perceive the place the Inexperienced Birch SLGH011 comes from.

Grand Seiko SLGH005 White Birch Hi-Beat Caliber 9SA5
The Grand Seiko Hello-Beat White Birch SLGH005

Behind all of those watches is one thing named Evolution 9, which is the model’s newest interpretation of the Grammar of Design. In 1967, the still-young GS model determined to placed on paper its design language with a sequence of guidelines named Grammar of Design, outlined by a sure Taro Tanaka, designer of the model for a few years. Expressed on the 44GS mannequin, these guidelines would be the base for many subsequent creations. But, Grand Seiko needed to evolve and make its watches extra modern, extra consistent with the present expectations. Therefore the creation of a brand new design language expressed below the identify Evolution 9 – extra refined, extra ergonomic, higher centre of gravity, extra legible dials…

Grand Seiko White Birch SLGA009 vs. SLGH005
Grand Seiko White Birch Spring Drive SLGA009 (left) and Hello-Beat SLGH005 (proper)

The watch that can make Evolution 9 well-known to the world is, for sure, the White Birch SLGH005. The principle subject of dialogue with this mannequin has been the dial, its pronounced silvered color and its spectacular detailed texture. However there’s extra to the White Birch, together with a brand new case form, an total extra trendy feel and look, and eventually an impressively technical motion with progressive escapement. This watch will later be derived with a brand new dial, nonetheless with the identical form of texture, however now with a deep inexperienced color that gave the SLGH011 its identify; the Inexperienced Birch.

The Inexperienced Birch SLGH011

The SLGH011 is mainly a unique color utilized to the White Birch SLGH005. Whereas the Spring Drive version, the SLGA009, was pretty totally different concerning the feel of the dial, but in addition a few of the case’s proportions, the Inexperienced Birch is nearly totally an identical to the Hello-Beat White Birch. And in all equity, there’s nothing flawed with that (in any respect). What really adjustments is the color of the dial, making this Inexperienced Birch a bit extra basic, a bit simpler to put on, and a bit much less placing.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

To begin with, the case. The Grand Seiko Evolution 9 Hello-Beat Inexperienced Birch SLGH011 is utilizing precisely the identical case as its silver counterpart, which implies chrome steel and 40mm in diameter. Proportions are the identical too, with an 11.7mm top – not the thinnest watch, however nonetheless an effort in comparison with earlier releases of the model below the 44GS or 62GS collections – and a comparatively compact lug-to-lug measurement of 47mm, making it appropriate for many masculine wrists. You may see the SLGH011 right here photographed on my 16.5cm wrist and on Robin’s 18cm wrist, and it feels sufficient in each conditions.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

The case depends on the brand new Evolution 9 codes, that means a profile that has extra curves, for a greater ergonomy. Mainly, the watch attracts a curved line from one lug to a different, thus following the pure curvature of the wrist. Additionally, the mix of a decreased thickness and a centre of gravity that has been moved nearer to the again of the watch makes for a extremely snug and balanced case. New design parts additionally concern the bezel, thinner than earlier than, providing a greater view of the dial. The watch is topped by a box-shaped sapphire crystal, itself taking part within the visible slenderness of the SLGH011. But, with its screw-down crown and caseback, the Inexperienced Birch stays week-compliant, with its 100m water-resistance.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

The ending of the case is, identical to with the White Birch, fairly spectacular. The flanks have a refine satin-brushed floor and a protracted, fairly skinny polished bevel runs from one lug to the opposite, leading to a dynamic look. The identical mixture of ending is used on the bezel, with a refined periphery and an higher floor that’s flat and vertically brushed. It’s trendy, detailed, sporty but not overly current, making the Inexperienced Birch a watch to be worn on the workplace or throughout weekends. On its full bracelet, the SLGH011 is given for 178 grams, which is consistent with most metal watches, however the pretty massive bracelet makes it balanced and the load turns into neglectable.

The principle evolution to be seen on the Inexperienced Birch SLGH011 is the dial, which is impressed by the birch tree forests surrounding the Shizukuishi studio the place the watch is manufactured, however now in summertime (the White Birch was all about wintertime). The color is pretty discreet and presents its lush reflections solely after a more in-depth inspection. From a distance, the dial will seem darkish and nearly black – which, for the sake of every day wearability, is a optimistic facet. Identical to the White Birch, there’s a robust embossed texture on the dial, with a sure roughness to the decor. Aside from the color, there’s a notable distinction with the silver version, and that’s the means the dial performs with the sunshine.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

On the White Birch, the silver color was extremely pronounced (nearly too current for some) and the dial extremely luminous, reinforcing the impact of the sample. On this watch, the darker color makes the reduction much less apparent. Additionally, what was barely seen on the silver mannequin, the dial is definitely coated in clear lacquer to present it a flat floor (a necessity with a purpose to print the logos and apply the markers). Right here, with the darkish inexperienced color, this impact is way extra seen, however definitely not disagreeable to the attention.

Different parts of the dial on this Inexperienced Birch SLGH011 haven’t modified in comparison with the White Birch SLGH005. The markers, bolder and extra current than earlier than, are a part of the brand new design language of the Evolution 9 assortment, alongside the bigger palms. The extent of execution on all parts is, as you’ve come to count on from Grand Seiko, merely beautiful. All parts are bevelled, faceted, textured and extremely embellished. The date window is framed by a metallic component, making a counterpoint to the 9 o’clock marker.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

No surprises both for the bracelet. The Inexperienced Birch comes outfitted with a 3-link chrome steel bracelet closed by a folding clasp with security push-pieces – and no micro-adjustment. The bracelet measures 22mm on the lugs and about 20mm on the clasp. This relative width someway participates within the visible attraction of the watch, a minimum of in my books, and makes the SLGH011 a snug piece. We’ve heard feedback concerning the truth that the bracelet ought to taper extra to the clasp, and even when I see the rationale for this criticism, I’ve by no means felt this to be a problem.

Grand Seiko Evolution 9 Hi-Beat Green Birch SLGH011

Mechanically talking, the Grand Seiko Evolution 9 Hello-Beat Inexperienced Birch SLGH011 depends on the fashionable and progressive in-house calibre 9SA5. There’s loads to be mentioned about this motion, which will be learn on this in-depth article. Mainly, the 9SA5 has a brand new high-frequency escapement geometry named Twin Impulse Escapement, working along with a free-sprung stability. The advantages are extra precision, higher shock resistance and extra effectivity. The general structure of the motion has all the time been reworked, with a thinner profile and two barrels for an 80h energy reserve. The motion is rated for +5 to -3 seconds per day. Lastly, the ornament is extra refined than prior to now, extra charming too with superbly designed bridges, skinny stripes, bevelled edges…

Availability & Value

The Grand Seiko Evolution 9 Hello-Beat Inexperienced Birch SLGH011 shall be accessible for orders in Autumn 2022, solely from Grand Seiko’s on-line boutiques (Europe or USA). The value shall be EUR 9,500 (incl. taxes) or USD 9,100 (excl. taxes). For extra particulars, please go to



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