Side by side

Lorier AstravsSeiko Prospex Sea

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

What people say

Owners + reviewers, side by side

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

Lorier Astra

The Lorier Astra is praised for its outstanding details and design language, hitting a "dressy sports watch" vibe with a beautiful sector dial and lume. Owners note its versatile, do-it-all design with classic proportions and refined details like beveled markers, making it suitable for both formal and casual wear. The watch wears slightly larger than its 36mm case suggests, closer to 38mm, with lugs that taper and curve downward to fit well on smaller wrists. However, the bracelet feels a bit light, some screws are difficult to remove, and the Miyota movement can gain around 8 seconds in 12 hours with potentially offset date numerals. On balance, owners rate the Lorier Astra highly for its dressy sports watch aesthetic and refined details at its price point.

From video reviewers

The watch's versatile dial and comfortable 36mm sizing are consistently praised. Lume brightness is noted as a potential weakness. Reviewers did not explicitly disagree on any points.

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

13 of 29 specs differ
Diameter
Astra36mm
Prospex Sea41.3mm
Power Reserve
Astra
Prospex Sea72h
Water Resistance
Astra50m
Prospex Sea300m
MSRP
Astra$599
Prospex Sea$1,100

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
36mm
41.3mm
Thickness
12.5mm
Lug-to-Lug
48.2mm
Lug Width
18mm
20mm
Water Resistance
50m
300m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Standard
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$599
$1,100
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Lorier Astra vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.