Side by side

Serket Watch Co TachymetrevsSeiko Prospex Sea

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

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Tachymetre
Serket Watch CoTachymetre
MSRP $299
Prospex Sea
SeikoProspex Sea
MSRP $795
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Buy from Seiko ↗
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At a glance

13 of 29 specs differ
Diameter
Tachymetre42.5mm
Prospex Sea34mm
Power Reserve
Tachymetre—
Prospex Sea40h
Water Resistance
Tachymetre50m
Prospex Sea200m
MSRP
Tachymetre$299
Prospex Sea$795

Full specifications

Case

6 specs
Category
—
Diver
Diameter
42.5mm
34mm
Thickness
12mm
8.7mm
Lug-to-Lug
53mm
40.8mm
Lug Width
22mm
16mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Teal Blue
Black
Lume
C3 SuperLuminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko VK64
6N01
Type
Mecaquartz
Quartz
Power Reserve
—
40h

Pricing

1 specs
MSRP
$299
$795
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