Side by side

Seiko Prospex SeavsTornek-Rayville TR-660 Aluminum Non-date

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

Prospex Sea
SeikoProspex Sea
MSRP $900
TR-660 Aluminum Non-date
Tornek-RayvilleTR-660 Aluminum Non-date

At a glance

10 of 29 specs differ
Diameter
Prospex Sea41mm
TR-660 Aluminum Non-date40mm
Power Reserve
Prospex Sea70h
TR-660 Aluminum Non-date50h
Water Resistance
Prospex Sea200m
TR-660 Aluminum Non-date200m
MSRP
Prospex Sea$900
TR-660 Aluminum Non-date

Full specifications

Case

3 specs
Diameter
41mm
40mm
Thickness
12.3mm
14.7mm
Lug-to-Lug
46.9mm
48.5mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Yes
Lume
LumiBrite on hands, index(es) and bezel
Superluminova

Movement

3 specs
Caliber
6R35
TMI NH38
Power Reserve
70h
50h
Jewels
24
25

Pricing

1 specs
MSRP
$900

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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.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

Tornek-Rayville TR-660 Aluminum Non-date

Owners praise the Tornek-Rayville TR-660 Aluminum Non-date for its crisp dial and bead-blasted case, with one owner finding it extremely well built and a relief to wear. The watch features a 40mm 316L stainless steel case and a black aluminum bezel inlay. However, the bezel action is considered not brilliant and the included straps are scratchy. Overall, owners find the Tornek-Rayville TR-660 Aluminum Non-date to be a well-executed piece with a pleasing aesthetic, despite minor drawbacks in the bezel feel and strap quality.

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