Side by side

Seestern S456 GMTvsTornek-Rayville TR-660 Acrylic Date

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

S456 GMT
SeesternS456 GMT
MSRP $299
TR-660 Acrylic Date
Tornek-RayvilleTR-660 Acrylic Date
What people say

Owners + reviewers, side by side

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

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

Tornek-Rayville TR-660 Acrylic Date

Owners widely praise the exceptional build quality for the price, noting a solid feel, quiet rotor, and good bezel action on the Tornek-Rayville TR-660 Acrylic Date. Reviewers highlight its utilitarian, non-reflective matte black dial and the inclusion of a moisture detector, echoing its military-issued predecessor. One owner found the lume dim and short-lived. Overall, owners rate the Tornek-Rayville TR-660 Acrylic Date highly for its robust construction and military-inspired design cues at its price point.

At a glance

15 of 29 specs differ
Diameter
S456 GMT41mm
TR-660 Acrylic Date40mm
Power Reserve
S456 GMT41hh
TR-660 Acrylic Date50h
Water Resistance
S456 GMT200m
TR-660 Acrylic Date200m
MSRP
S456 GMT$299
TR-660 Acrylic Date

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
41mm
40mm
Thickness
13mm
14.7mm
Lug-to-Lug
49mm
48.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Sunray style, applied and Diamond cut Indices, C1 lume
Black
Lume
C1
Superluminova

Movement

5 specs
Caliber
Seiko NH34
TMI NH38
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
50h
Jewels
24
25
Complications
GMT
None

Pricing

1 specs
MSRP
$299
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