Side by side

Serica Ref. 5303 Diving ChronometervsGlycine Airman SST GMT

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Airman SST GMT
GlycineAirman SST GMT
MSRP $3,400

At a glance

17 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Airman SST GMT43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Airman SST GMT48h
Water Resistance
Ref. 5303 Diving Chronometer300m
Airman SST GMT200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Airman SST GMT$3,400

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
39mm
43mm
Thickness
12.2mm
11.6mm
Lug-to-Lug
46.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Grey
Indices
Applied
Lume
Super-LumiNova
Luminous

Movement

3 specs
Caliber
M100 COSC
SW330-2
Power Reserve
42h
48h
Complications
COSC
GMT, Date

Pricing

1 specs
MSRP
$1,768
$3,400

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

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.

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