Side by side

Grand Seiko SLGA015vsSeiko Prospex LX line

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

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 SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

Seiko Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

At a glance

11 of 29 specs differ
Diameter
SLGA01543.8mm
Prospex LX line44.8mm
Power Reserve
SLGA015120h
Prospex LX line72h
Water Resistance
SLGA015200m
Prospex LX line300m
MSRP
SLGA015$12,600
Prospex LX line$6,500

Full specifications

Case

5 specs
Diameter
43.8mm
44.8mm
Thickness
13.8mm
15.7mm
Lug-to-Lug
51.5mm
50.9mm
Lug Width
23mm
22mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
9RA5
5R65
Power Reserve
120h
72h
Jewels
0
30

Pricing

1 specs
MSRP
$12,600
$6,500
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