Knot Watches SAC-40SSVvsMomentum Splash - White Full Lume
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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.

SAC-40SSV

Splash - White Full Lume
Diameter
40mm
38mm
Lug-to-Lug
n/a
45.5mm
Thickness
11.5mm
11.5mm
Water Resistance
200m
200m
MSRP
$296
$199
lowest
Movement
Seiko Epson PX82
Seiko VS22
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 Knot Watches SAC-40SSV for its Seiko-like finishing and attractive price point, with many appreciating its light feel and the quality of the strap and deployment buckle, though some find it initially stiff. The 40mm size is a point of contention, with some finding it comfortable and a favorite, while others consider it too large and prefer the 38mm variant. A recurring criticism is the small, awkwardly placed crown, which makes winding difficult. One owner also noted poor engraving and considered the watch to be primarily a fashion piece. Overall, owners rate the Knot Watches SAC-40SSV positively for its finishing and value, despite some reservations about the crown design and sizing.
The Momentum Splash - White Full Lume is praised for its exceptionally bright and long-lasting full lume dial, with one owner calling it the "best lume of any watch" they've owned, and another noting its usefulness for scuba classes. Owners appreciate the 38mm size for wearability, the easy-to-read white full lume dial, and the glossy hands on matte indices. The knurled crown action is also highlighted as excellent, and the slightly domed sapphire crystal is a positive feature. However, some owners report that the lume does not last through the night, and one reviewer noted a loud ticking sound and a haphazardly screwed-on case back, contributing to a perception of subpar quality and an overpriced $200 tag. Overall, owners and reviewers find the Momentum Splash - White Full Lume to be a great, low-maintenance daily wear, with the full lume dial being its most celebrated feature.
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