CWC SBS Black Ice QuartzvsGrand Seiko SBGP015
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

SBS Black Ice Quartz

SBGP015
Diameter
n/a
40mm
Lug-to-Lug
n/a
47.1mm
Thickness
n/a
12.4mm
Water Resistance
300m
highest
200m
MSRP
$666
lowest
$3,800
Movement
Ronda 517
Grand Seiko 9F85
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the CWC SBS Black Ice Quartz Watch for its legible, uncluttered dial, excellent lume, and robust build quality, with a fantastic bezel featuring zero back play. The 41mm case, noted for its comfortable 12mm thickness and durable black PVD coating, wears well, and the fixed lugs are seen as a positive for strap changes. One owner notes the lume is readable throughout the night, and the second hand aligns closely with indices. However, some owners consider its £700 price high for a quartz diver, questioning its value, and one owner reported issues with a faulty mechanism and poor retailer customer service. Overall, owners rate the CWC SBS Black Ice Quartz Watch highly for its bulletproof, toolish design and practical legibility.
Owners widely praise the Grand Seiko SBGP015 for its exceptional dial print, which casts sharp shadows under light, and its versatility, classiness, and substantial feel. The Grand Seiko 9F85 quartz movement is noted for excellent timekeeping, with one owner purchasing it as a grab-and-go option. The watch is 40mm with 200m water resistance. Overall, owners rate the Grand Seiko SBGP015 highly for its sharp dial print and reliable quartz movement.
The high accuracy of the Caliber 9F85 quartz movement is a significant strength. Reviewers noted the movement's ±10 seconds per year accuracy. The limited 100-meter water resistance was cited as a potential drawback.
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