Side by side

Marathon Arctic OSAR 41mm AutomaticvsLongines ULTRA‑CHRON CARBON

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

Arctic OSAR 41mm Automatic
MarathonArctic OSAR 41mm Automatic
MSRP $1,800
ULTRA‑CHRON CARBON
LonginesULTRA‑CHRON CARBON
MSRP $5,550

At a glance

20 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
ULTRA‑CHRON CARBON43mm
Power Reserve
Arctic OSAR 41mm Automatic40h
ULTRA‑CHRON CARBON52h
Water Resistance
Arctic OSAR 41mm Automatic300m
ULTRA‑CHRON CARBON300m
MSRP
Arctic OSAR 41mm Automatic$1,800
ULTRA‑CHRON CARBON$5,550

Full specifications

Case

7 specs
Diameter
41mm
43mm
Thickness
13mm
14mm
Lug-to-Lug
43.5mm
48.9mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Titanium
Finish
Brushed and polished
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
White
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Sellita SW220-1
L836.6
Beat Rate
28,800 vph
36,000 vph
Power Reserve
40h
52h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds

Pricing

1 specs
MSRP
$1,800
$5,550

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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 Arctic OSAR 41mm Automatic

The Marathon Arctic OSAR 41mm Automatic is noted for its comfortable wearability on wrists under 7 inches, with one owner finding the 41mm size perfect. Accuracy observations vary, with one owner reporting a consistent +1 second per day and another noting -20 seconds per day. The watch features a Sellita automatic movement and has dimensions of 14mm thickness and a 48mm lug-to-lug. Overall, owners appreciate the Marathon Arctic OSAR 41mm Automatic for its comfortable fit and Marathon's overall appeal.

Longines ULTRA‑CHRON CARBON

The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.

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