Side by side

Glycine Airman SST GMTvsZelos Spearfish GMT

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

Airman SST GMT
GlycineAirman SST GMT
MSRP $3,400
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

16 of 29 specs differ
Diameter
Airman SST GMT43mm
Spearfish GMT40mm
Power Reserve
Airman SST GMT48h
Spearfish GMT40h
Water Resistance
Airman SST GMT200m
Spearfish GMT200m
MSRP
Airman SST GMT$3,400
Spearfish GMT$999

Full specifications

Case

7 specs
Diameter
43mm
40mm
Thickness
11.6mm
13mm
Lug-to-Lug
40mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Grey
Frost
Indices
Applied
Lume
Luminous
None

Movement

3 specs
Caliber
SW330-2
Sellita SW330-2
Power Reserve
48h
40h
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$3,400
$999

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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.

Glycine Airman SST GMT

Owners praise the Glycine Airman SST GMT for its comfortable wear, good build quality, accuracy, lume, and historical significance. The 24-hour dial and compressor-style GMT ring are noted as great features. One owner found the Sellita SW330 movement authentic, though expected Glycine branding on the rotor. The dial is considered busy, and one owner experienced the watch stopping after a day on a winder with a rattling rotor, suggesting service. On balance, owners rate the Glycine Airman SST GMT highly for its comfortable wear and historical significance.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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