Grand Seiko SBGH205 Hi-Beat

This Grand Seiko Hi-Beat SBGH205 is in EXCELLENT condition. This watch includes its original box, operating instructions, and warranty card dated for November 2021.

Released in 2017, the Grand Seiko SBGH205 runs an improved high-beat 9S85 caliber, with 10-beat per second. This makes it run at a rate faster than other mechanical varieties of its time. With SBGH205, Grand Seiko strides on another landmark of quality in making the "ideal" watch - surpassing its own previous standards in the process.

Grand Seiko SBGH205 is a beauty of its own kind - an archetype classic watch on a metal bracelet. It houses a high-beat 9S85 caliber, a perfect and aesthetically formed Hi-Beat 36000. This surpasses its original 10-beat auto caliber watch 61GS of 1968 in many ways. First with its high precision created through sophisticated new-age technology. Second with the MEMS technology which affords the caliber a new escape wheel and pallet.

The SBGH205 balance spring is composed of another newly developed highly shock resistant and anti-magnetic alloy “SPRON610”. The new components significantly contribute to its high accuracy and reliability in performance. It is arguably the most precise timekeeping piece in the industry with an accuracy of -3 to +5 seconds per day (+8 to -1 seconds per day on a normal day usage).

What more apart from its key element of accuracy? Well, its black dial creates a strong impression with a delicate and beautiful radial pattern. It is inspired by the many rigid contours of Mt. Iwate. This mountain is visible through the windows of the Shizuku-Ishi Watch Studio where Grand Seiko mechanical watches are made. The watch is comfortable and has a water resistance ability of 10 bar.

Finally, it comes with a handy guide called “Mechanical Watch Movements Handbook by Seiko”. Published in both the English and Japanese languages, this book describes with text and illustrations how the movement works, how to care for the watch and how to live with it properly. The guide is interesting, in-depth, and user-centered.

The Grand Seiko SBGH205 has a finely polished stainless-steel case of 40.2mm diameter and 13mm thick, with a dual-curved sapphire glass. It has a 37-jewel bracelet band of 195mm perimeters with a three-fold clasp with push-button release.

This classic beauty runs an Hi-Beat 9S85 caliber, an automatic movement with manual winding capacity. Although it has an energy-consuming characteristic, it still reserves approximately 55 hours of power. It boasts an accuracy of +5 to -3 seconds per day (when static) and +8 to -1 seconds per day (normal usage accuracy).

An incarnation of an original design, it has an improved water resistance capability of 10 bar, magnetic resistance, and weighs only 151.0 g making it a comfortable gear on your wrist.

The dial is a black pattern inspired by the Mt. Iwate, with the date window display on the 3 o’clock hand. The case back is a screw, see-through with the lion emblem. It has a screw-down crown and a stop second-hand function.

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