Side by side

Serica Ref. 5303 Diving ChronometervsMarathon Jeep Rubicon TSAR

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Jeep Rubicon TSAR
MarathonJeep Rubicon TSAR
MSRP $1,650

At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Jeep Rubicon TSAR41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Jeep Rubicon TSAR40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Jeep Rubicon TSAR300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Jeep Rubicon TSAR$1,650

Full specifications

Case

4 specs
Diameter
39mm
41mm
Thickness
12.2mm
14mm
Lug-to-Lug
46.5mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Green
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Swiss High-Torque Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,650

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Marathon Jeep Rubicon TSAR

Marathon Jeep Rubicon TSAR owners praise its toughness and 41mm size for a 7" wrist, noting the sapphire crystal remains nearly flawless after a decade of near-daily wear and abuse. Tritium lume is still acceptable in darkness, and the bezel, though missing its 0-mark triangle, remains tight and clicks solidly. The watch features a steel case water-resistant to 300 meters, a Sellita SW200-1 automatic movement, and dual branding that de-emphasizes Marathon. Overall, owners rate the Marathon Jeep Rubicon TSAR highly for its exceptional durability and practical size.

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