Side by side

Zelos Nasa Edition (sellita)vsRZE Fortitude 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
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

14 of 29 specs differ
Diameter
Nasa Edition (sellita)39mm
Fortitude GMT41mm
Power Reserve
Nasa Edition (sellita)40h
Fortitude GMT40h
Water Resistance
Nasa Edition (sellita)50m
Fortitude GMT200m
MSRP
Nasa Edition (sellita)$629
Fortitude GMT$719

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
39mm
41mm
Thickness
7.6mm
12mm
Lug-to-Lug
39mm
47mm
Material
316L Stainless Steel
Grade 5 Titanium
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Underside
Dial Color
NASA Edition (Sellita)
Red
Lume
None
Super-LumiNova BGW9

Movement

3 specs
Caliber
ETA/Peseux 7001
Miyota 9075
Type
Manual
Automatic
Complications
None
GMT

Pricing

1 specs
MSRP
$629
$719

Follow this matchup

Get a note when Zelos Nasa Edition (sellita) vs RZE Fortitude 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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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.