Side by side

Citizen Promaster Diver EcozillavsTissot Seastar 1000 Chronograph

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

Promaster Diver Ecozilla
CitizenPromaster Diver Ecozilla
MSRP $469
Seastar 1000 Chronograph
TissotSeastar 1000 Chronograph
MSRP $650

At a glance

11 of 29 specs differ
Diameter
Promaster Diver Ecozilla48mm
Seastar 1000 Chronograph45.5mm
Power Reserve
Promaster Diver Ecozilla40h
Seastar 1000 Chronograph40h
Water Resistance
Promaster Diver Ecozilla300m
Seastar 1000 Chronograph300m
MSRP
Promaster Diver Ecozilla$469
Seastar 1000 Chronograph$650

Full specifications

Case

4 specs
Diameter
48mm
45.5mm
Thickness
12mm
12.82mm
Lug-to-Lug
46mm
45.5mm
Lug Width
29mm
22mm

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Underside
Yes
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
B873
Type
Solar
Quartz

Pricing

1 specs
MSRP
$469
$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.

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.

Tissot Seastar 1000 Chronograph

Owners widely praise the Tissot Seastar 1000 Chronograph for its captivating blue dial, excellent case finishing, and legible matte dial, with some noting its Powermatic 80 movement offers remarkable accuracy averaging -0.6 seconds per day and an 80-hour power reserve. The ceramic bezel is also frequently highlighted as exceptionally well-done, and the bracelet is described as surprisingly strong. However, multiple owners report issues including bezel looseness, paint chipping, flooding, a broken crown, and a protruding case back causing discomfort. Some find the watch too large, with one owner noting unfinished case sides and a crown pattern that digs into fingers. Overall, owners rate the Tissot Seastar 1000 Chronograph highly for its impressive finishing and value, despite a notable number of reports concerning durability and comfort issues.

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