Knot Watches TSC-40 ChronographvsSeiko Prospex Speedtimer

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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.

TSC-40 Chronograph

Prospex Speedtimer
Diameter
40mm
42mm
Lug-to-Lug
n/a
49.6mm
Thickness
11mm
lowest
12.9mm
Water Resistance
100m
100m
MSRP
$281
lowest
$2,200
Movement
Seiko (Epson) VR43
Seiko 5X83
Case
5 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Knot TSC-40 Chronograph's design and value, with one owner calling it a well-made souvenir from Tokyo appreciating its Japanese origin and exclusivity. The watch is noted for its lightness and a soft, ready-to-wear leather strap, though one owner found the strap disappointing and the engraving quality lacking. Another owner found the 18mm strap width slimmer than desired on the 39mm model. The Knot TSC-40 Chronograph utilizes a Seiko (Epson) VR43 solar chronograph movement and features double-drilled lugs for strap changes. Overall, owners rate the Knot TSC-40 Chronograph highly for its design and value proposition, with the main points of contention being strap quality and engraving.
Owners praise the Seiko Prospex SPEEDTIMER's unique dial colors, with one highlighting a red dial and another a cream and purple-gray panda. Some owners find the 39mm variants sturdy, reliable, and versatile for everyday wear. A few owners express a preference for automatic movements over the quartz caliber. One reviewer notes a price of €860/£730 for a Speedtimer variant. On balance, owners appreciate the Seiko Prospex SPEEDTIMER's distinctive design and everyday wearability, though some find the quartz movement and price points to be drawbacks.
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