Tissot PRC 100 Solar vs
Bulova Aerojet Open Heart
The Tissot PRC 100 Solar and Bulova Aerojet Open Heart showcase two very different approaches to modern watchmaking. The Tissot embraces cutting-edge solar technology, offering quartz accuracy with virtually maintenance-free ownership, while the Bulova celebrates traditional mechanical craftsmanship with an automatic movement and open-heart dial that lets you watch the movement in action.
If you're deciding between a solar watch and an automatic watch, this comparison will help you understand which type best fits your everyday carry. For a broader overview of watch categories, visit our EDC Watches guide, while our Watch Types Guide explains how different watch styles and movement technologies compare.
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QUICK VERDICT
Choose the Tissot PRC 100 Solar if you want exceptional accuracy, minimal maintenance, and the convenience of solar charging.
Choose the Bulova Aerojet Open Heart if you appreciate traditional mechanical watchmaking, visible movement craftsmanship, and the experience of owning an automatic watch.
THE SHOWDOWN
Tissot PRC 100
Bulova Aerojet
✓ Low Maintenance
✓ Swiss Accuracy
✓ Solar Powered
✓ Automatic Movement
✓ Classic Design
✓ Open Heart
The Comparison Products
This is where the real differences show — comparing how each watch performs across the areas that matter most in everyday carry.
Bulova Aerojet Open Heart
Best For: Mechanical watch enthusiasts
Movement: Automatic
Strength: Traditional craftsmanship
Avoid If: You want maintenance-free ownership
Carry Style: Classic Everyday
Tissot PRC 100 Solar
Best For: Low-maintenance everyday wear
Movement: Swiss Solar Quartz
Strength: Solar-powered accuracy
Avoid If: You prefer mechanical movements
Carry Style: Modern Everyday
Design Philosophy
The Tissot focuses on clean modern styling with advanced solar technology hidden beneath the dial.
The Bulova proudly displays its automatic movement through an open-heart dial, making the movement itself part of the watch's design.
Winner: Tie
Accuracy
Solar quartz movements deliver exceptional precision and rarely require adjustment.
Automatic watches naturally gain or lose a few seconds each day, making them less accurate but far more mechanical in nature.
Winner: Tissot PRC 100 Solar
Maintenance
The Tissot requires almost no routine attention beyond occasional exposure to light.
The Bulova will eventually require servicing to keep its mechanical movement performing at its best.
Winner: Tissot PRC 100 Solar
Ownership Experience
The Bulova offers a unique connection between owner and watch. Watching the balance wheel operate through the open-heart dial reminds you that hundreds of mechanical parts are working together without a battery.
The Tissot offers convenience by simply working every day with almost no thought required.
Winner: Bulova Aerojet Open Heart
HEAD-TO-HEAD CATEGORY BREAKDOWN
Everyday Convenience
The Tissot excels here. Solar charging, Swiss quartz accuracy, and worry-free ownership make it one of the easiest watches to live with.
The Bulova requires more attention but rewards enthusiasts with traditional mechanical charm.
Winner: Tissot PRC 100 Solar
Long-Term Reliability
Both watches are built for years of dependable ownership.
The Tissot minimizes maintenance through solar technology, while the Bulova can continue operating for generations with proper servicing.
Winner: Tie
Value
The Tissot delivers outstanding technology and Swiss quality for the price.
The Bulova offers tremendous value for buyers wanting an automatic watch with visible mechanical engineering.
Winner: Tie
Who Should Buy Each?
Buy the Bulova Aerojet Open Heart if you:
Appreciate traditional watchmaking.
Enjoy automatic movements.
Like seeing the movement operate.
Want a classic dress-inspired design.
Value mechanical craftsmanship.
Buy the Tissot PRC 100 Solar if you:
Want maximum accuracy.
Prefer maintenance-free ownership.
Like modern technology.
Wear one watch every day.
Don't want battery replacements.
WHICH HEADPHONES
SHOULD YOU CHOOSE?
If you simply want a dependable watch that stays accurate, charges itself through light, and requires almost no maintenance, the Tissot PRC 100 Solar is the obvious choice. It's an ideal everyday carry watch for buyers who prioritize convenience and long-term practicality.
If owning a watch is about appreciating mechanical engineering, tradition, and craftsmanship, the Bulova Aerojet Open Heart offers an experience that no quartz or solar movement can fully replicate.
One represents the future of practical watch ownership, while the other celebrates the heritage that made mechanical watches legendary.
BUZZ PICK
Tissot PRC
100 Solar
Swiss solar watch with reliable everyday performance.
BUZZ PICK
Bulova Aerojet
Open Heart
Elegant automatic watch showcasing mechanical craftsmanship.
Frequently Asked Questions
Is a solar watch better than an automatic watch?
Neither is inherently better. Solar watches prioritize convenience and accuracy, while automatic watches focus on traditional craftsmanship and mechanical engineering.
Which watch is more accurate?
The Tissot PRC 100 Solar offers significantly greater accuracy thanks to its Swiss solar quartz movement.
Do solar watches need battery replacements?
Most solar watches use rechargeable power cells that can operate for many years without traditional battery changes.
Do automatic watches stop running?
Yes. Automatic watches stop when they're no longer worn unless stored on a watch winder. Simply winding and resetting them gets them running again.
Which watch requires less maintenance?
The Tissot PRC 100 Solar requires substantially less maintenance than the Bulova automatic.
Which watch should a first-time buyer choose?
Most first-time buyers will appreciate the simplicity of the Tissot, while enthusiasts looking to experience mechanical watchmaking will likely enjoy the Bulova more.
FINAL VERDICT
The Tissot PRC 100 Solar and Bulova Aerojet Open Heart perfectly illustrate why choosing a watch isn't always about specifications. It's about choosing the ownership experience that best fits your lifestyle.
Choose the Tissot PRC 100 Solar if you value convenience, Swiss accuracy, and maintenance-free reliability.
Choose the Bulova Aerojet Open Heart if you appreciate traditional craftsmanship, automatic movements, and the timeless appeal of mechanical watchmaking.
For a deeper look at each category, visit our Best Solar Watches guide and learn more about movement technology in Quartz or Automatic: Which Is Better for Everyday Carry? If you're still comparing different styles before making your decision, our Watch Buying Guide and EDC Watches hub will help you find the perfect everyday carry watch.
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