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Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsGruppo Gamma Field III GMT Date

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

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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.

Marathon OSAR-D (Original SAR with Date) Automatic 36mm

Owners widely praise the Marathon OSAR-D (Original SAR with Date) Automatic 36mm for its exceptional legibility, featuring large hour markers and MaraGlo lume. The watch is noted for its comfortable wearability and competent Swiss-made Selitta SW200-1 automatic movement, offering 300-meter water resistance and a sapphire crystal. Some enthusiasts find the price of $1,380 USD on rubber to be excessive, particularly compared to past models or other brands, and the Spartan bracelet is described as lacking refinement. On balance, owners and reviewers find the Marathon OSAR-D Automatic 36mm a reliable and functional tool watch, with its clear dial and robust build being the primary draws.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

At a glance

13 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 36mm36mm
Field III GMT Date40mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 36mm
Field III GMT Date41h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 36mm300m
Field III GMT Date200m
MSRP
OSAR-D (Original SAR with Date) Automatic 36mm$1,200
Field III GMT Date$459

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
36mm
40mm
Thickness
13mm
14mm
Lug-to-Lug
43.5mm
48.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW220-1
Seiko NH38
Power Reserve
0h
41h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,200
$459
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