
The Grand Seiko SBGE307 (ref. sbge307g) is a spring drive gmt watch, with a 44.5mm titanium case, 14.9mm thick, powered by the 9R66 movement and a 72-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $11,500.
The Grand Seiko SBGE307 is praised for its unique "lion's mane" textured ivory dial and angular, modern titanium case featuring Zaratsu polishing. Reviewers highlight the aggressive, claw-shaped lugs and the contrasting hairline finishing, as well as the brownish-red GMT hand as a notable accent. The watch is powered by the 9R66 Spring Drive movement, offering a 72-hour power reserve and accuracy rated at +/- 15 seconds per month by one source, and +/- 1 second per day by another. It is priced at $10,700 USD and offers 200m water resistance. On balance, reviewers find the Grand Seiko SBGE307 to be a striking timepiece distinguished by its textured dial and sharp case finishing.