Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsBoldr Expedition Enigmath

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
Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599

At a glance

13 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Expedition Enigmath41mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Expedition Enigmath42h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Expedition Enigmath200m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Expedition Enigmath$599

Full specifications

Case

7 specs
Category
Diver
Tool
Diameter
46mm
41mm
Thickness
13mm
12.8mm
Lug-to-Lug
43.5mm
47.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Enigmath Coconino
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW220-1
Miyota 9039,
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$2,500
$599

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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.

Boldr Expedition Enigmath

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

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