Side by side

Glycine Airman GMT Dual TimevsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Airman GMT Dual Time
GlycineAirman GMT Dual Time
MSRP $1,095
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
Airman GMT Dual Time42mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Airman GMT Dual Time
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Airman GMT Dual Time200m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Airman GMT Dual Time$1,095
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
42mm
46mm
Thickness
13mm
18mm
Lug-to-Lug
55mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)
Finish
Brushed and polished
Water Resistance
200m
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
5
25
Complications
GMT, Date, Dual Time
None

Pricing

1 specs
MSRP
$1,095
$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 Airman GMT Dual Time

The Glycine Airman GMT Dual Time is praised for its comfortable size, attractive aesthetics, blue AR-coated sapphire crystal, and value as a "grab 'n' go" quartz piece. Owners appreciate its classic pilot design and wearability, with some finding it fits well under a shirt cuff and looks more expensive on a mesh bracelet. However, some find the dual GMT hands redundant and less intuitive than a purist 24-hour dial, with the GMT hand's similarity to the minute hand causing frustration for some. Legibility is a concern for some owners, who note the dark Arabic numerals on the black dial can be hard to see in less than ideal light, though the luminous hands are considered amazing. On balance, owners and reviewers rate the Glycine Airman GMT Dual Time highly for its classic design and comfortable wearability, despite some legibility and GMT hand usability concerns.

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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