Side by side

Zelos Nasa Edition (sellita)vsSeestern S446 GMT

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

Nasa Edition (sellita)
ZelosNasa Edition (sellita)
MSRP $629
S446 GMT
SeesternS446 GMT
MSRP $299

At a glance

15 of 29 specs differ
Diameter
Nasa Edition (sellita)39mm
S446 GMT39.5mm
Power Reserve
Nasa Edition (sellita)40h
S446 GMT41hh
Water Resistance
Nasa Edition (sellita)50m
S446 GMT100m
MSRP
Nasa Edition (sellita)$629
S446 GMT$299

Full specifications

Case

5 specs
Category
Dress
GMT
Diameter
39mm
39.5mm
Thickness
7.6mm
13mm
Lug-to-Lug
39mm
47mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Domed
Dial Color
NASA Edition (Sellita)
Cream

Movement

6 specs
Caliber
ETA/Peseux 7001
Seiko NH34A GMT
Type
Manual
Automatic
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$629
$299

Follow this matchup

Get a note when Zelos Nasa Edition (sellita) vs Seestern S446 GMT gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Zelos Nasa Edition (sellita)

The Zelos Nasa Edition (sellita) is praised for its thinness, stemming from its hand-wound Sellita SW215 movement, and is noted for its good size and wearability. The watch features a 39mm case, a 45mm lug to lug, and a 20mm lug width. On balance, owners rate the Zelos Nasa Edition (sellita) highly for its comfortable dimensions and thin profile.

Seestern S446 GMT

Owners widely praise the Seestern S446 GMT for its stunning finishing and extreme value, with a sapphire crystal and adjustable clasp. The winding action is noted as buttery smooth, and the 39.5mm case size is considered very wearable. Some owners, however, flag the lume as a weak point and one owner found the bracelet clasp lacked sufficient micro-adjustment. The Seestern S446 GMT is considered an extreme value for the dollar. Overall, owners rate the Seestern S446 GMT highly for its exceptional finishing and value proposition at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.