Side by side
Radcliffe Watches L'INSTANT SONOREvsSeiko Prospex SPEEDTIMER Mechanical
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
L'INSTANT SONORE40mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
L'INSTANT SONORE—
Prospex SPEEDTIMER Mechanical72h
Water Resistance
L'INSTANT SONORE30m
Prospex SPEEDTIMER Mechanical200m
MSRP
L'INSTANT SONORE$1,588
Prospex SPEEDTIMER Mechanical$995
Full specifications
Case
7 specsCategory
—
Chronograph
Diameter
40mm
39.5mm
Thickness
—
12mm
Lug-to-Lug
47mm
44.5mm
Lug Width
—
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
30m
200m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9015
6R55
Power Reserve
—
72h
Jewels
25
24
Pricing
1 specsMSRP
—
$995
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