Side by side

Impossible Watch Company IMP ChronographvsSeiko Prospex Sea Save the Ocean Special Edition

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

At a glance

15 of 29 specs differ
Diameter
IMP Chronograph38.5mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
IMP Chronograph42h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
IMP Chronograph30m
Prospex Sea Save the Ocean Special Edition200m
MSRP
IMP Chronograph$595
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs
Category
Diver
Diameter
38.5mm
45mm
Thickness
13.5mm
13.2mm
Lug-to-Lug
47.7mm
Lug Width
20mm
22mm
Water Resistance
30m
200m

Crystal & Dial

4 specs
Crystal
K1
Sapphire
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Silver Gilt
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Seagull ST1901
4R36
Type
Manual
Automatic
Power Reserve
42h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$595
$625
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