Side by side

Citizen Promaster Diver EcozillavsSpinnaker Dumas Automatic

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

Promaster Diver Ecozilla
CitizenPromaster Diver Ecozilla
MSRP $469
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

11 of 29 specs differ
Diameter
Promaster Diver Ecozilla48mm
Dumas Automatic44mm
Power Reserve
Promaster Diver Ecozilla40h
Dumas Automatic40h
Water Resistance
Promaster Diver Ecozilla300m
Dumas Automatic300m
MSRP
Promaster Diver Ecozilla$469
Dumas Automatic$239

Full specifications

Case

5 specs
Diameter
48mm
44mm
Thickness
12mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
29mm
22mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
AR Coating
Underside
Inner
Dial Color
Black
Blue

Movement

2 specs
Caliber
B873
SII NH35A
Type
Solar
Automatic

Pricing

1 specs
MSRP
$469
$239

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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 Promaster Diver Ecozilla

The Citizen Promaster Diver Ecozilla is widely praised for its reassuringly solid, overbuilt feel and excellent value, especially when on sale. Owners note that the second hand hits its markers well, with one owner reporting all nine of their Citizen watches exhibit proper alignment. The watch features robust 300m water resistance and vibrant lume. However, its substantial 48mm size and 18.6mm thickness create a massive wrist presence, and some owners question its wearability due to its chunky dimensions, with one noting the stainless steel version weighs a ton. On balance, owners and reviewers rate the Citizen Promaster Diver Ecozilla highly for its robust build and excellent value proposition.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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