Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsGlycine Airman No. 1 Purist

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

OSAR-D (Original SAR with Date) Automatic 46mm
MarathonOSAR-D (Original SAR with Date) Automatic 46mm
MSRP $2,500
Airman No. 1 Purist
GlycineAirman No. 1 Purist
MSRP $2,800

At a glance

18 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Airman No. 1 Purist36mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Airman No. 1 Purist48h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Airman No. 1 Purist30m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Airman No. 1 Purist$2,800

Full specifications

Case

9 specs
Category
Diver
GMT
Diameter
46mm
36mm
Thickness
13mm
11.6mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Silver
Indices
Applied
Lume
None
Luminous

Movement

3 specs
Caliber
Sellita SW220-1
SW330-2
Power Reserve
40h
48h
Complications
None
Date

Pricing

1 specs
MSRP
$2,500
$2,800

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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 46mm

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

Glycine Airman No. 1 Purist

The Glycine Airman No. 1 Purist is praised as a faithful re-creation of a historical 24-hour watch, with one owner purchasing it for $620 and viewing it as a long-term keeper due to its heritage reissue status and vintage aesthetics. The 36mm size is noted as a conversation starter. However, the acrylic crystal is prone to scratching, with one example showing a small scratch over the date window. Some community members suggest pre-Invicta models may hold value better. Overall, owners appreciate the Glycine Airman No. 1 Purist for its authentic vintage appeal and unique dial, though the acrylic crystal requires careful handling.

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