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Radcliffe Watches L'INSTANT SONOREvsSeiko Prospex SPEEDTIMER

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

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L'INSTANT SONORE
Radcliffe WatchesL'INSTANT SONORE
MSRP $1,588
Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $3,000
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At a glance

15 of 29 specs differ
Diameter
L'INSTANT SONORE40mm
Prospex SPEEDTIMER42.5mm
Power Reserve
L'INSTANT SONORE—
Prospex SPEEDTIMER45h
Water Resistance
L'INSTANT SONORE30m
Prospex SPEEDTIMER100m
MSRP
L'INSTANT SONORE$1,588
Prospex SPEEDTIMER$3,000

Full specifications

Case

7 specs
Category
—
Chronograph
Diameter
40mm
42.5mm
Thickness
—
15.1mm
Lug-to-Lug
47mm
50mm
Lug Width
—
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
30m
100m

Crystal & Dial

4 specs
Crystal 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 specs
Caliber
Miyota 9015
8R46
Power Reserve
—
45h
Jewels
25
34

Pricing

1 specs
MSRP
—
$3,000
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