Side by side

Zelos Nasa Edition (sellita)vsBoldr Odyssey Freediver

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

Nasa Edition (sellita)
ZelosNasa Edition (sellita)
MSRP $629
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

13 of 29 specs differ
Diameter
Nasa Edition (sellita)39mm
Odyssey Freediver40mm
Power Reserve
Nasa Edition (sellita)40h
Odyssey Freediver40h
Water Resistance
Nasa Edition (sellita)50m
Odyssey Freediver300m
MSRP
Nasa Edition (sellita)$629
Odyssey Freediver$649

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
39mm
40mm
Thickness
7.6mm
14.2mm
Lug-to-Lug
39mm
48mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
NASA Edition (Sellita)
202
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
ETA/Peseux 7001
Cal
Type
Manual
Automatic

Pricing

1 specs
MSRP
$629
$649

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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.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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