Side by side

Lorier Neptune SIVvsSeiko Prospex Sea

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

Neptune SIV
LorierNeptune SIV
MSRP $599
Prospex Sea
SeikoProspex Sea
MSRP $1,500

At a glance

12 of 29 specs differ
Diameter
Neptune SIV39mm
Prospex Sea43.5mm
Power Reserve
Neptune SIV40h
Prospex Sea70h
Water Resistance
Neptune SIV200m
Prospex Sea200m
MSRP
Neptune SIV$599
Prospex Sea$1,500

Full specifications

Case

5 specs
Diameter
39mm
43.5mm
Thickness
13.3mm
Lug-to-Lug
51mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium

Crystal & Dial

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

Movement

3 specs
Caliber
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$599
$1,500

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What people say

Owners + reviewers, side by side

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

Lorier Neptune SIV

Owners widely praise the Lorier Neptune SIV for its versatile, vintage-inspired design featuring a glossy gilt-style dial and a comfortable, tapered bracelet, noting its affordability reduces wear anxiety. Reviewers and owners alike mention the acrylic crystal as a point of contention, with some preferring sapphire, and one owner finds the bracelet lacks the feel of more expensive options. On balance, owners and reviewers rate the Lorier Neptune SIV highly for its appealing vintage aesthetic and value proposition.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

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