Head-to-Head Comparison

Updated September 5, 2026

Citizen Eco-Drive Weekender Chronograph vs Orient Sun & Moon

Citizen's chronograph meets Orient's dress watch

Quick Verdict

The Citizen Eco-Drive Weekender Chronograph ($150–$250) offers Citizen Eco-Drive Solar Quartz precision in the tier below the Orient Sun & Moon ($250–$500). The Eco-Drive Weekender Chronograph measures 43mm and is rated 100m (10 ATM). The Sun & Moon counters with Made in Japan craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.

CitizenEco-Drive Weekender Chronograph$150–$250 Check price View the dossier

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Citizen

Eco-Drive Weekender Chronograph

$150–$250

Check Price Full Review

Orient

Sun & Moon

$250–$500

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Specifications Compared

Feature	Citizen Eco-Drive Weekender Chronograph	Orient Sun & Moon
Price	$150–$250	$250–$500
Case Size	43mm	41.5mm
Movement	Eco-Drive Caliber H500	Automatic Caliber F6B24
Caliber Type	Citizen Eco-Drive Solar Quartz	Orient In-House Automatic (Hacking, Hand-Winding)
Power Reserve	—	40 Hours
Water Resistance	100m (10 ATM)	50m (5 ATM)
Crystal	Mineral Crystal	Mineral Glass
Case Material	Stainless Steel	Stainless Steel
Origin	Japanese Movement	Made in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Citizen's design language vs Orient's approach

The Citizen Eco-Drive Weekender Chronograph features a Stainless Steel case at 43mm with Mineral Crystal protection. The Orient Sun & Moon offers Stainless Steel construction at 41.5mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Orient

Eco-Drive Caliber H500 vs Automatic Caliber F6B24

The Eco-Drive Weekender Chronograph runs the Eco-Drive Caliber H500 (Citizen Eco-Drive Solar Quartz, standard power reserve) at standard frequency. The Sun & Moon uses the Automatic Caliber F6B24 (Orient In-House Automatic (Hacking, Hand-Winding), 40 Hours reserve) at 21,600 vph (3 Hz). The Sun & Moon offers a longer power reserve.

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Wearability & Fit

Edge: Orient

43mm vs 41.5mm — different wrist presence

At 43mm, the Eco-Drive Weekender Chronograph has a bolder wrist presence compared to the Sun & Moon at 41.5mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Citizen

Citizen sits in the lower tier

The Citizen Eco-Drive Weekender Chronograph sits at $150–$250 and the Orient Sun & Moon at $250–$500. On the specs that outlast any price: the Eco-Drive Weekender Chronograph uses Mineral Crystal with a standard reserve, against Mineral Glass and 40 Hours on the Sun & Moon. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Citizen

100m (10 ATM) vs 50m (5 ATM)

The Eco-Drive Weekender Chronograph is rated to 100m (10 ATM) while the Sun & Moon handles 50m (5 ATM). The Eco-Drive Weekender Chronograph is better suited for water activities.

Our Verdict

Citizen

Eco-Drive Weekender Chronograph

Choose the Citizen Eco-Drive Weekender Chronograph if you prioritize Citizen Eco-Drive Solar Quartz engineering, Japanese Movement craftsmanship, and 100m (10 ATM) water resistance. At $150–$250, it delivers Eco-Drive Caliber H500 with solid power reserve.

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Orient

Sun & Moon

Choose the Orient Sun & Moon if you value Orient In-House Automatic (Hacking, Hand-Winding) technology, Made in Japan heritage, and 41.5mm proportions. At $250–$500, the Automatic Caliber F6B24 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Citizen Eco-Drive Weekender Chronograph and Orient Sun & Moon represent two distinct approaches to fine watchmaking — the Citizen bringing Japanese Movement tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

The Orient Sun & Moon is the better buy if you want a mechanical movement; the Citizen Eco-Drive Weekender Chronograph is the better buy if you want solar power and quartz accuracy with no servicing. For water, the Citizen Eco-Drive Weekender Chronograph is rated 100 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Citizen Eco-Drive Weekender Chronograph sits a band lower ($150–$250 against $250–$500), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.

The Citizen Eco-Drive Weekender Chronograph offers better upfront value, sitting a tier lower at $150–$250. However, the Orient Sun & Moon may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Eco-Drive Weekender Chronograph at 43mm with 100m (10 ATM) water resistance handles everyday situations. The Sun & Moon at 41.5mm with 50m (5 ATM) is similarly capable. The Eco-Drive Weekender Chronograph uses Mineral Crystal while the Sun & Moon uses Mineral Glass.

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How This Page Was Made

Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.