Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsMonta Skyquest

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250
Skyquest
MontaSkyquest
MSRP $2,435

At a glance

10 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Skyquest40.7mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Skyquest40h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Skyquest305m
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Skyquest$2,435

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
46mm
40.7mm
Thickness
18mm
Lug-to-Lug
55mm
Lug Width
22mm
Material
316L Stainless Steel (Anthracite IP)
Stainless Steel
Water Resistance
300m
305m

Crystal & Dial

1 specs
Dial Color
Anthracite
Black

Movement

1 specs
Caliber
Sellita SW220-1
Monta M-23

Pricing

1 specs
MSRP
$3,250
$2,435

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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 JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

Monta Skyquest

Owners widely praise the Monta Skyquest's build quality and bracelet finishing, with one owner noting its superior articulation and another calling it outstanding for the price. Reviewers highlight its wearability, sporty yet dressy aesthetic, bold aluminum bezel, and bright lume, powered by a Sellita SW330 movement. Some owners find the bezel numeral style polarizing, the GMT hand kinked, and the bezel rotation stiff with silent clicks. The clasp is described as a tight fit and long by some, and the watch wears larger than expected, though its low weight and slim side profile are noted positives. Accuracy for the SW330 movement is considered good by some, with 300m WR and a slim case profile also cited. Overall, owners and reviewers rate the Monta Skyquest highly for its exceptional bracelet finishing and versatile design at its price point.

From video reviewers

The Monta Skyquest GMT features an excellent bracelet, praised by multiple reviewers for its high quality and smooth action. A notable trade-off is the lume brightness, which could be improved. Reviewers disagree on whether the watch's price justifies its cost, with some considering it one of the most expensive GMTs under $3,000 and others viewing it as a strong contender in the under $3000 GMT market.

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