Side by side

Citizen Tsuki-yomi A-TvsMarathon Steel Navigator SSNAV-D Quartz

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

Tsuki-yomi A-T
CitizenTsuki-yomi A-T
MSRP $656
Steel Navigator SSNAV-D Quartz
MarathonSteel Navigator SSNAV-D Quartz
MSRP $1,300

At a glance

11 of 29 specs differ
Diameter
Tsuki-yomi A-T43mm
Steel Navigator SSNAV-D Quartz41mm
Power Reserve
Tsuki-yomi A-T40h
Steel Navigator SSNAV-D Quartz40h
Water Resistance
Tsuki-yomi A-T100m
Steel Navigator SSNAV-D Quartz60m
MSRP
Tsuki-yomi A-T$656
Steel Navigator SSNAV-D Quartz$1,300

Full specifications

Case

7 specs
Category
Dress
Pilot
Diameter
43mm
41mm
Thickness
12mm
11mm
Lug-to-Lug
46mm
48mm
Lug Width
22mm
20mm
Material
Super Titanium
316L Stainless Steel
Water Resistance
100m
60m

Crystal & Dial

1 specs
Dial Color
Red
Black

Movement

2 specs
Caliber
H874
Swiss High-Torque Quartz
Type
Solar
Quartz

Pricing

1 specs
MSRP
$656
$1,300

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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.

Citizen Tsuki-yomi A-T

The Citizen Tsuki-yomi A-T is widely praised for its gorgeous, detailed moonphase complication, available in gray, blue, or red, and its visually light Super Titanium case. Reviewers and owners alike highlight the comfortable wearability offered by the 43mm case, which is 11mm thick with short lugs and features a mix of brushed and polished finishes. The radio-controlled atomic timekeeping and Eco-Drive movement are noted as key features, along with a world time zone guide on the case back. Some users find the pushers and crown for setting time zones and hemisphere settings, along with the chapter ring functions, to be unintuitive. On balance, owners and reviewers rate the Citizen Tsuki-yomi A-T highly for its striking moonphase display and comfortable, lightweight titanium construction at a great price.

Marathon Steel Navigator SSNAV-D Quartz

The Marathon Steel Navigator SSNAV-D Quartz is widely praised for its high-accuracy Swiss Made ETA F06.412 HeavyDrive-PreciDrive quartz movement, rated at +/- 10 seconds per year, and its tritium lume. Reviewers and owners highlight its functional tool-watch appeal, noting the sandblasted steel case with an asymmetric design, excellent bi-directional bezel action, and drilled lug holes. Some owners find it perfectly suited for sport/rugged use, though not necessarily as an everyday watch. One owner points out that the case's distinctive asymmetry deviates from current aesthetic trends. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Quartz highly for its robust build and exceptional timekeeping accuracy at its price point.

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