Insider: Grand Seiko Spring Drive 3-Day GMT SBGE307 'Lion's Mane'

From the time of its first watch in 1960, Grand Seiko has used the lion, as a powerful symbol. Embodying the dignity of the regal creature, with all of its imposing and fierce presence, this model’s strong appearance recalls the animal’s powerful forelimbs, claws, and mane. The lugs, intended to evoke lion claws, have a bold and distinctive shape and appearance, and the case rests firmly yet comfortably on the wrist.

Equipped with a 44.5 mm high-intensity titanium case with a thickness of 14.9 mm, the Grand Seiko Spring Drive 3-Day GMT SBGE307 'Lion's Mane' is equipped with a matching bracelet in high-intensity titanium with a three-fold clasp with secure lock push button release and solid slide adjuster.

Grand Seiko Spring Drive 3-Day GMT SBGE307

Things to Know About the Watch

The reddish-brown GMT hand quietly makes its presence known on the shining white dial with a pattern that evokes the mane of a lion, hence the nickname ‘Lion’s Mane’. The watch has a high level of practicality befitting a sports model. This can be observed in the Lumibrite coating on the hands and indexes, which makes it easy to read at night, as well as the formidable water resistance of 200 meters. Additionally, a power reserve indicator between 7 and 8 o’clock completes the watch.

GMT watches are timepieces equipped with an additional hand that tracks a second time zone, typically in a 24-hour format. To use a GMT watch effectively, first, set the local time on the main hour and minute hands. Then, adjust the GMT hand to reflect the second time zone you wish to track becoming a perfect watch ideal for frequent travelers or individuals regularly communicating across different parts of the world.

The dial design consists of a pattern that calls to mind the mane of a lion.

Equipped with a black GMT bezel made out of sapphire crystal the watch has a very modern and ultra-sporty look and feel. Not only the GMT bezel can be used to quickly track a second or even a third time zone, but it can also be used instead of a compass when lost. To do this, start by pointing the hour hand towards the sun. In the northern hemisphere, halfway between the hour hand and 12 o'clock will give you the south direction. In the southern hemisphere, halfway between the hour hand and 12 o'clock will indicate north. Remember that this method works best when the time is set to daylight saving time if applicable, as it aligns the watch more accurately with true north or south. GMT watches are handy tools for navigation in a pinch thanks to their additional hand displaying a second time zone.


The Movement

The Grand Seiko Spring Drive 3-Day GMT SBGE307 'Lion's Mane' is powered by the Spring Drive calibre 9R66 with a power reserve of 72 hours and an accuracy of ±15 seconds per month, and this was the first Spring Drive movement to incorporate a GMT mechanism. This precision is equivalent to ±1 seconds per day, which is beyond the precision stipulated by the Swiss COSC standards. This 30-jewel automatic movement is also anti-magnetic to 4,800 A/m.


On the Wrist & Price

On the wrist, the Grand Seiko Spring Drive 3-Day GMT SBGE307 wears slightly bigger than its case size and is relatively similar in look to the non-GMT SBGA481. The watch is very light and the angular case along with the GMT black bezel gives this watch a very seventies look and somewhat of a retro feel.

A lot of watch for the money considering the meticulous craftsmanship and attention to detail apparent in every aspect of the timepiece, from the sharpness of the hands to the intricate dial finishing. The case design is refined and versatile, comfortable for everyday wear yet sophisticated enough for any formal occasion. The iconic Zaratsu polishing technique results in a mesmerizing play of light and shadow on the case, showcasing the watch's exquisite beauty from every angle.

Overall, wearing a Grand Seiko like this one is a statement of refinement and taste that is sure to be noticed and appreciated by watch enthusiasts and connoisseurs alike.

Sticker Price USD 10,700. For more info on Grand Seiko click here.