Side by side

Marathon MSAR (Medium Search & Rescue) Diver's AutomaticvsSeiko Prospex Land Mechanical GMT

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

MSAR (Medium Search & Rescue) Diver's Automatic
MarathonMSAR (Medium Search & Rescue) Diver's Automatic
MSRP $1,800
Prospex Land Mechanical GMT
SeikoProspex Land Mechanical GMT
MSRP $1,150

At a glance

15 of 29 specs differ
Diameter
MSAR (Medium Search & Rescue) Diver's Automatic36mm
Prospex Land Mechanical GMT39.5mm
Power Reserve
MSAR (Medium Search & Rescue) Diver's Automatic40h
Prospex Land Mechanical GMT72h
Water Resistance
MSAR (Medium Search & Rescue) Diver's Automatic300m
Prospex Land Mechanical GMT200m
MSRP
MSAR (Medium Search & Rescue) Diver's Automatic$1,800
Prospex Land Mechanical GMT$1,150

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
36mm
39.5mm
Thickness
18mm
13.6mm
Lug-to-Lug
46.4mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,800
$1,150

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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 MSAR (Medium Search & Rescue) Diver's Automatic

The Marathon MSAR (Medium Search & Rescue) Diver's Automatic is lauded for its utilitarian, no-nonsense design, exceptional tritium lume for visibility, and comfortable 41mm wearability. Reviewers highlight its robust build, meeting ISO 6425 dive watch standards and approved for military use, demonstrating durability during demanding activities. One reviewer notes the stock rubber strap requires modification for a proper fit. Overall, reviewers rate the Marathon MSAR (Medium Search & Rescue) Diver's Automatic highly for its focus on utility and ruggedness at its price point.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

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