Side by side

Glycine Airman No. 1 PuristvsZelos Spearfish 3

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

Airman No. 1 Purist
GlycineAirman No. 1 Purist
MSRP $2,800
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

17 of 29 specs differ
Diameter
Airman No. 1 Purist36mm
Spearfish 340mm
Power Reserve
Airman No. 1 Purist48h
Spearfish 340h
Water Resistance
Airman No. 1 Purist30m
Spearfish 3200m
MSRP
Airman No. 1 Purist$2,800
Spearfish 3$749

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
36mm
40mm
Thickness
11.6mm
11.5mm
Lug-to-Lug
40mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Silver
Diver - Forged Carbon
Indices
Applied
Lume
Luminous
None

Movement

3 specs
Caliber
SW330-2
La Joux-Perret G100
Power Reserve
48h
40h
Complications
Date
None

Pricing

1 specs
MSRP
$2,800
$749

Follow this matchup

Get a note when Glycine Airman No. 1 Purist vs Zelos Spearfish 3 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.

Glycine Airman No. 1 Purist

The Glycine Airman No. 1 Purist is praised as a faithful re-creation of a historical 24-hour watch, with one owner purchasing it for $620 and viewing it as a long-term keeper due to its heritage reissue status and vintage aesthetics. The 36mm size is noted as a conversation starter. However, the acrylic crystal is prone to scratching, with one example showing a small scratch over the date window. Some community members suggest pre-Invicta models may hold value better. Overall, owners appreciate the Glycine Airman No. 1 Purist for its authentic vintage appeal and unique dial, though the acrylic crystal requires careful handling.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value 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.