Zelos Nasa Edition (sellita)vsIsotope Oracle Time x Isotope Mercury Vitreous
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Nasa Edition (sellita)

Oracle Time x Isotope Mercury Vitreous
Diameter
39mm
38mm
Thickness
7.6mm
lowest
10mm
Water Resistance
50m
100m
highest
Power Reserve
n/a
42h
MSRP
$629
lowest
$3,168
Movement
ETA/Peseux 7001
ETA/Peseux 7001
Case
5 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Zelos Nasa Edition (sellita) is praised for its good size and wearability, with a thin profile due to the manual-wind Sellita SW215 movement, a 39mm case, and a 45mm lug-to-lug measurement. Owners note the winding system requires service every five years and the regulating device is not optimal for accuracy. On balance, owners appreciate the Zelos Nasa Edition (sellita) for its wearability and thinness at its price point.
The Isotope Oracle Time x Isotope Mercury Vitreous is widely praised for its unique vitreous enamel dial, with owners highlighting its vibrant color and texture, particularly the orange dial in a black DLC case. The 38mm case size is noted for comfortable wearability. Sources mention the manual-wind ETA/Peseux 7001 movement, which contributes to a thin 10mm case. Some owners find the hand-winding action less refined than anticipated, and a few consider the price high for the movement. Overall, owners and reviewers rate the Isotope Oracle Time x Isotope Mercury Vitreous highly for its distinctive dial and comfortable 38mm wearability.
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