Side by side

Ralf Tech ACADÉMIE AUTOMATICvsSeiko Prospex Sea

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

ACADÉMIE AUTOMATIC
Ralf TechACADÉMIE AUTOMATIC
MSRP $2,230
Prospex Sea
SeikoProspex Sea
MSRP $1,100
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Ralf Tech ACADÉMIE AUTOMATIC

Ralf Tech is praised for its 1960s vibe achieved with modern parts and comfortable 41mm wearability, with owners noting it is a durable travel companion. One owner found their Ralf Tech WRV comfortable to wear. Some owners question the brand's marketing and high price point. Overall, owners and reviewers rate Ralf Tech well for its durable, wearable design that evokes a classic aesthetic.

Seiko Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

At a glance

12 of 29 specs differ
Diameter
ACADÉMIE AUTOMATIC41mm
Prospex Sea41.3mm
Power Reserve
ACADÉMIE AUTOMATIC40 hoursh
Prospex Sea72h
Water Resistance
ACADÉMIE AUTOMATIC200m
Prospex Sea300m
MSRP
ACADÉMIE AUTOMATIC$2,230
Prospex Sea$1,100

Full specifications

Case

6 specs
Category
Diver
Diameter
41mm
41.3mm
Thickness
12mm
12.5mm
Lug-to-Lug
46mm
48.2mm
Material
Bronze
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
RTA003
6R55
Power Reserve
40 hoursh
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,230
$1,100
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