Citizen Eco-Drive Diver vs Citizen Promaster Diver Automatic

Side-by-side comparison of specifications and features

CitizenEco-Drive Diver

BN0100-42E

CitizenPromaster Diver Automatic

NY0040-09E

Key Differences

Best Value

Citizen Promaster Diver Automatic (NY0040-09E)

Starting from $265

Biggest Price Drop

Citizen Eco-Drive Diver (BN0100-42E)

-0.4% in 30 days

Price Comparison

Citizen Eco-Drive Diver

MSRP

$400

New

$341

Used

$200

Citizen Promaster Diver Automatic

MSRP

$400

New

$265

Used

$320

MSRP New (Amazon) Used (eBay)

Comparison of Citizen Eco-Drive Diver, Citizen Promaster Diver Automatic
Specification	Citizen Eco-Drive Diver	Citizen Promaster Diver Automatic
Pricing
MSRP	$400	$400
New Price	$341	$265
Used Price (Low)	$200	$320
Used Price (High)	$649	$1,091
30-Day Trend	↓ -0.4%	↑ +0.6%
Used Price Range	$200 - $649	$320 - $1,091
Identity
Reference	BN0100-42E	NY0040-09E
Nickname	N/A	N/A
Style	Diver, Tool	Diver, Tool
Release Era	2020s	2020s
Dimensions
Diameter	42mm	42mm
Thickness	N/A	N/A
Lug Width	N/A	N/A
Lug to Lug	N/A	N/A
Movement
Movement	Solar Powered	Automatic
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Stainless Steel	Stainless Steel
Crystal	Mineral Crystal	Mineral Crystal
Water Resistance	200m (diving)	200m (diving)
Bezel	Unidirectional rotating	Unidirectional rotating
Dial
Dial Color	Black	Black
Luminous	Yes	Yes
Community
Review Rating	N/A	N/A
In Collections	N/A	N/A
On Wishlists	N/A	N/A
Forum Threads	N/A	N/A

Quick Summary

This Citizen Eco-Drive Diver vs Citizen Promaster Diver Automatic comparison is less about a universal winner and more about mechanical feel versus low-maintenance convenience. They both touch the diver and tool use case, so smaller spec differences can matter more than brand preference.

How to choose

The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.

Citizen Eco-Drive Diver

Citizen Eco-Drive Diver is a better fit for low-maintenance daily wear, diver styling.

Citizen Promaster Diver Automatic

Citizen Promaster Diver Automatic is a better fit for mechanical-watch enthusiasts, diver styling.

Key Differences

Movement and upkeep

Citizen Eco-Drive Diver: solar movement

Citizen Promaster Diver Automatic: automatic movement

Citizen Eco-Drive Diver uses a solar movement, while Citizen Promaster Diver Automatic uses a automatic movement — that changes day-to-day ownership, upkeep, and the overall feel on the wrist.

Size and wearability

Citizen Eco-Drive Diver: 42mm

Citizen Promaster Diver Automatic: 42mm

Their size profiles are relatively close, so fit comes down to shape, weight, and how each watch sits on your wrist.

Water resistance

Citizen Eco-Drive Diver: 200m

Citizen Promaster Diver Automatic: 200m

Water resistance is similar on paper, so focus on fit, features, and price instead.

Price and value

Citizen Eco-Drive Diver: $341

Citizen Promaster Diver Automatic: $265

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Style and use case

Citizen Eco-Drive Diver: diver

Citizen Promaster Diver Automatic: diver

Both lean into a similar diver use case — the choice is more about fit, features, and price than category.

Crystal and materials

Citizen Eco-Drive Diver: mineral crystal · steel

Citizen Promaster Diver Automatic: mineral crystal · steel

Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.

Choose Citizen Eco-Drive Diver If...

You want a lower-maintenance daily watch.
You are comfortable paying more for a stronger feature set.

Choose Citizen Promaster Diver Automatic If...

You prefer a mechanical watch experience and do not mind more upkeep.
You want the lower current entry price.

Price and Value Notes

Citizen Promaster Diver Automatic usually offers the lower entry price — confirm current listings because marketplace pricing can move quickly.

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Where to Check Deals

Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.

Check current deals on Amazon and eBay

Prices change often, so compare the latest listings and condition options before you buy.

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Citizen Eco-Drive Diver

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $230 · Live listings

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Citizen Promaster Diver Automatic

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $415 · Live listings

Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.

Comparison FAQ

Which movement is easier to live with day to day?

Quartz and solar models are usually easier for grab-and-go use, while automatic and manual watches appeal more to buyers who enjoy the mechanical side of watch ownership.

Which one is better for smaller wrists?

Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.

Which is better for swimming or rough daily wear?

Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.

Should I choose based on price alone?

Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.