Side by side

Momentum Atlas Eclipse SolarvsSeestern S456 GMT

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.

Momentum Atlas Eclipse Solar

Owners widely praise the Momentum Atlas Eclipse Solar for its lightweight titanium construction, solar quartz movement, and sapphire crystal, making it an excellent choice for outdoor activities and daily wear. The 32mm case size is noted as a comfortable fit for many, though some sources refer to a 38mm variant. Legibility is generally excellent due to large numerals, and lume receives mixed reviews, with some owners calling it the best they've experienced while others find it subpar for the price. The oversized crown is visually noted but pleasant to use, and the Cordura strap is considered very comfortable. One owner reported a faulty movement requiring multiple services and found the bracelet to be of poor quality. Overall, owners rate the Momentum Atlas Eclipse Solar highly for its robust, low-maintenance field watch design and solar technology.

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.

At a glance

16 of 29 specs differ
Diameter
Atlas Eclipse Solar32mm
S456 GMT41mm
Power Reserve
Atlas Eclipse Solar
S456 GMT41hh
Water Resistance
Atlas Eclipse Solar100m
S456 GMT200m
MSRP
Atlas Eclipse Solar$244
S456 GMT$299

Full specifications

Case

7 specs
Category
GMT
Diameter
32mm
41mm
Thickness
13mm
Lug-to-Lug
49mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
None
C1

Movement

6 specs
Caliber
Seiko NH34
Type
Solar
Automatic
Beat Rate
28,800 vph
3 vph
Power Reserve
41hh
Jewels
25
24
Complications
None
GMT

Pricing

1 specs
MSRP
$244
$299
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