Head-to-Head Comparison

Updated September 5, 2026

Casio Pro Trek PRG601-1 vs Orient Bambino Version 2

Casio's timepiece meets Orient's dress watch

Quick Verdict

The Orient Bambino Version 2 ($150–$250) delivers Orient In-House Automatic technology in the tier below the Casio Pro Trek PRG601-1 ($250–$500). The Bambino Version 2 measures 41mm and is rated 30m (3 ATM). The Pro Trek PRG601-1 justifies its premium with Casio (Japan) heritage and Tough Solar (Solar Quartz). Both represent excellent choices in the luxury watch category.

CasioPro Trek PRG601-1$250–$500 Check price View the dossier

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

Casio

Pro Trek PRG601-1

$250–$500

Check Price Full Review

Orient

Bambino Version 2

$150–$250

View the dossier Full Review

Specifications Compared

Feature	Casio Pro Trek PRG601-1	Orient Bambino Version 2
Price	$250–$500	$150–$250
Case Size	51.6mm	41mm
Movement	Tough Solar (Solar Quartz)	Automatic Caliber F6724
Caliber Type	Tough Solar Quartz (No Battery Change)	Orient In-House Automatic
Power Reserve	7 Months (Solar, Full Charge); 25 Months Power Save	40 Hours
Water Resistance	100m (10 ATM)	30m (3 ATM)
Crystal	Mineral Glass	Domed Mineral Crystal
Case Material	Bio-Based Resin / Stainless Steel	Stainless Steel
Origin	Casio (Japan)	Made in Japan

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Casio's design language vs Orient's approach

The Casio Pro Trek PRG601-1 features a Bio-Based Resin / Stainless Steel case at 51.6mm with Mineral Glass protection. The Orient Bambino Version 2 offers Stainless Steel construction at 41mm with Domed Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Orient

Tough Solar (Solar Quartz) vs Automatic Caliber F6724

The Pro Trek PRG601-1 runs the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), 7 Months (Solar, Full Charge); 25 Months Power Save power reserve) at standard frequency. The Bambino Version 2 uses the Automatic Caliber F6724 (Orient In-House Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Bambino Version 2 offers a longer power reserve.

📏

Wearability & Fit

Edge: Orient

51.6mm vs 41mm — different wrist presence

At 51.6mm, the Pro Trek PRG601-1 has a bolder wrist presence compared to the Bambino Version 2 at 41mm. Water resistance differs: 100m (10 ATM) vs 30m (3 ATM).

💰

Value & Cost of Ownership

Edge: Orient

Orient sits in the lower tier

The Casio Pro Trek PRG601-1 sits at $250–$500 and the Orient Bambino Version 2 at $150–$250. On the specs that outlast any price: the Pro Trek PRG601-1 uses Mineral Glass with 7 Months (Solar, Full Charge); 25 Months Power Save, against Domed Mineral Crystal and 40 Hours on the Bambino Version 2. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Casio

100m (10 ATM) vs 30m (3 ATM)

The Pro Trek PRG601-1 is rated to 100m (10 ATM) while the Bambino Version 2 handles 30m (3 ATM). The Pro Trek PRG601-1 is better suited for water activities.

Our Verdict

Casio

Pro Trek PRG601-1

Choose the Casio Pro Trek PRG601-1 if you prioritize Tough Solar Quartz (No Battery Change) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $250–$500, it delivers Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve.

Check Price on Amazon

Orient

Bambino Version 2

Choose the Orient Bambino Version 2 if you value Orient In-House Automatic technology, Made in Japan heritage, and 41mm proportions. At $150–$250, the Automatic Caliber F6724 with 40 Hours power reserve makes it a compelling choice.

View the dossier

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

The Bottom Line

The Casio Pro Trek PRG601-1 and Orient Bambino Version 2 represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

The Orient Bambino Version 2 is the better buy if you want a mechanical movement; the Casio Pro Trek PRG601-1 is the better buy if you want solar power and quartz accuracy with no servicing. For water, the Casio Pro Trek PRG601-1 is rated 100 m against 30 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Orient Bambino Version 2 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 Orient Bambino Version 2 offers better upfront value, sitting a tier lower at $150–$250. However, the Casio Pro Trek PRG601-1 may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Pro Trek PRG601-1 at 51.6mm with 100m (10 ATM) water resistance handles everyday situations. The Bambino Version 2 at 41mm with 30m (3 ATM) is similarly capable. The Pro Trek PRG601-1 uses Mineral Glass while the Bambino Version 2 uses Domed Mineral Crystal.

More Comparisons

Orient Bambino vs Seiko Alpinist

A dress watch and an explorer, three price bands apart

Orient Bambino vs Seiko 5 Sports

Dress automatic or sports automatic

Orient Bambino vs Seiko 5 SNKL23

The two classic cheap dress automatics

Explore These Watches

Casio Pro Trek PRG601-1 — Full Review Orient Bambino Version 2 — 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.