Side by side

Grand Seiko SBGE307vsSeiko Prospex LX line

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

SBGE307
Grand SeikoSBGE307
MSRP $11,500
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

9 of 29 specs differ
Diameter
SBGE30744.5mm
Prospex LX line44.8mm
Power Reserve
SBGE30772h
Prospex LX line72h
Water Resistance
SBGE307200m
Prospex LX line200m
MSRP
SBGE307$11,500
Prospex LX line$5,500

Full specifications

Case

4 specs
Diameter
44.5mm
44.8mm
Thickness
14.9mm
14.7mm
Lug-to-Lug
50mm
50.9mm
Lug Width
23mm
22mm

Crystal & Dial

2 specs
AR Coating
Yes
Super-clear coating
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
9R66
5R66
Jewels
25
30

Pricing

1 specs
MSRP
$11,500
$5,500

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Grand Seiko SBGE307

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.

Seiko Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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