Side by side

Glycine Airpilot GMTvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Airpilot GMT
GlycineAirpilot GMT
MSRP $1,595
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

20 of 29 specs differ
Diameter
Airpilot GMT44mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Airpilot GMT
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Airpilot GMT100m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Airpilot GMT$1,595
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
44mm
46mm
Thickness
10.75mm
18mm
Lug-to-Lug
55mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Anthracite
Indices
Applied
Lume
Luminous
None

Movement

6 specs
Caliber
Sellita SW220-1
Type
Quartz
Automatic
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
1
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$1,595
$3,250

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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 Airpilot GMT

Owners widely praise the Glycine Airpilot GMT for its exceptional value, citing case and bracelet finishing that rivals much more expensive watches, a vibrant dial, and clear legibility. One owner notes a potential concern about the crown stem, having encountered similar issues with the brand. The clasp is considered average, and the red numbers on the inner chapter ring are too small to be useful. The 52mm lug-to-lug may be too large for smaller wrists. Overall, owners rate the Glycine Airpilot GMT highly for its impressive finishing and value proposition.

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

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