Head-to-Head Comparison

Updated September 5, 2026

Citizen Tsuyosa Automatic vs Invicta Pro Diver Automatic 23681

Citizen's timepiece meets Invicta's diver

Quick Verdict

The Invicta Pro Diver Automatic 23681 ($50–$100) delivers Automatic (Seiko NH35A) technology in the tier below the Citizen Tsuyosa Automatic ($250–$500). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. The Tsuyosa Automatic justifies its premium with Made in Japan heritage and Automatic Caliber 8210. Both represent excellent choices in the luxury watch category.

CitizenTsuyosa Automatic$250–$500 Check price InvictaPro Diver Automatic 23681$50–$100 Check price

Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.

Citizen

Tsuyosa Automatic

$250–$500

Check Price Full Review

Invicta

Pro Diver Automatic 23681

$50–$100

Check Price Full Review

Specifications Compared

Feature	Citizen Tsuyosa Automatic	Invicta Pro Diver Automatic 23681
Price	$250–$500	$50–$100
Case Size	40mm	40mm
Movement	Automatic Caliber 8210	Automatic NH35A
Caliber Type	Citizen/Miyota In-House Automatic	Automatic (Seiko NH35A)
Power Reserve	40 Hours	—
Water Resistance	50m (5 ATM)	200m
Crystal	Sapphire Crystal with Cyclops	Mineral Glass
Case Material	Stainless Steel	—
Origin	Made in Japan	Invicta (Japanese movement)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Citizen's design language vs Invicta's approach

The Citizen Tsuyosa Automatic features a Stainless Steel case at 40mm with Sapphire Crystal with Cyclops protection. The Invicta Pro Diver Automatic 23681 offers steel construction at 40mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Citizen

Automatic Caliber 8210 vs Automatic NH35A

The Tsuyosa Automatic runs the Automatic Caliber 8210 (Citizen/Miyota In-House Automatic, 40 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Pro Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. The Tsuyosa Automatic edges ahead on power reserve.

📏

Wearability & Fit

Edge: Draw

40mm vs 40mm — different wrist presence

At 40mm, the Tsuyosa Automatic is similarly sized compared to the Pro Diver Automatic 23681 at 40mm. Water resistance differs: 50m (5 ATM) vs 200m.

💰

Value & Cost of Ownership

Edge: Invicta

Invicta sits in the lower tier

The Citizen Tsuyosa Automatic sits at $250–$500 and the Invicta Pro Diver Automatic 23681 at $50–$100. On the specs that outlast any price: the Tsuyosa Automatic uses Sapphire Crystal with Cyclops with 40 Hours, against Mineral Glass and a standard reserve on the Pro Diver Automatic 23681. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Invicta

50m (5 ATM) vs 200m

The Tsuyosa Automatic is rated to 50m (5 ATM) while the Pro Diver Automatic 23681 handles 200m. The Pro Diver Automatic 23681 offers superior water resistance.

Our Verdict

Citizen

Tsuyosa Automatic

Choose the Citizen Tsuyosa Automatic if you prioritize Citizen/Miyota In-House Automatic engineering, Made in Japan craftsmanship, and 50m (5 ATM) water resistance. At $250–$500, it delivers Automatic Caliber 8210 with 40 Hours power reserve.

Check Price on Amazon

Invicta

Pro Diver Automatic 23681

Choose the Invicta Pro Diver Automatic 23681 if you value Automatic (Seiko NH35A) technology, Invicta (Japanese movement) heritage, and 40mm proportions. At $50–$100, the Automatic NH35A with ample power reserve makes it a compelling choice.

Check Price on Amazon

Try Prime Free — Free Shipping on Both Watches Students & 18–24: start Prime for Young Adults free

The Bottom Line

The Citizen Tsuyosa Automatic and Invicta Pro Diver Automatic 23681 represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Invicta delivers Invicta (Japanese movement) engineering.

Frequently Asked Questions

For water, the Invicta Pro Diver Automatic 23681 is rated 200 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Invicta Pro Diver Automatic 23681 sits a band lower ($50–$100 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 Invicta Pro Diver Automatic 23681 offers better upfront value, sitting a tier lower at $50–$100. However, the Citizen Tsuyosa Automatic may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Tsuyosa Automatic at 40mm with 50m (5 ATM) water resistance handles everyday situations. The Pro Diver Automatic 23681 at 40mm with 200m is similarly capable. The Tsuyosa Automatic uses Sapphire Crystal with Cyclops while the Pro Diver Automatic 23681 uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

More Comparisons

Seiko Presage Cocktail vs Citizen Tsuyosa

Two Japanese automatics under $500 — which dial wins?

Citizen Tsuyosa vs G-Shock CasiOak

The classy one and the sporty one

Citizen Tsuyosa vs Tissot PRX Powermatic 80

The two integrated-bracelet automatics everyone compares

Explore These Watches

Citizen Tsuyosa Automatic — Full Review Invicta Pro Diver Automatic 23681 — Full Review Browse All Guides

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.