Junghans Form A Automatic vs Longines HydroConquest Automatic
Junghans's dress watch meets Longines's diver
Quick Verdict
The Junghans Form A Automatic ($1,000–$1,500) offers Swiss ETA Base, German-Finished precision in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Form A Automatic measures 39.3mm and is rated 50m (5 ATM). The HydroConquest Automatic counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Junghans Form A Automatic | Longines HydroConquest Automatic |
|---|---|---|
| Price | $1,000–$1,500 | $1,500–$2,500 |
| Case Size | 39.3mm | 41mm |
| Movement | Automatic J800.2 (ETA 2824-2) | Automatic L888.5 |
| Caliber Type | Swiss ETA Base, German-Finished | ETA-Based Automatic with Silicon Balance Spring |
| Power Reserve | 38 Hours | 72 Hours |
| Water Resistance | 50m (5 ATM) | 300m (30 ATM) |
| Crystal | Flat Sapphire with Anti-Reflective Coating | Sapphire with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Germany | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Junghans's design language vs Longines's approach
The Junghans Form A Automatic features a Stainless Steel case at 39.3mm with Flat Sapphire with Anti-Reflective Coating protection. The Longines HydroConquest Automatic offers Stainless Steel construction at 41mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic J800.2 (ETA 2824-2) vs Automatic L888.5
The Form A Automatic runs the Automatic J800.2 (ETA 2824-2) (Swiss ETA Base, German-Finished, 38 Hours power reserve) at 28,800 vph (4 Hz) frequency. The HydroConquest Automatic uses the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours reserve) at 25,200 vph (3.5 Hz). The HydroConquest Automatic offers a longer power reserve.
Wearability & Fit
39.3mm vs 41mm — different wrist presence
At 39.3mm, the Form A Automatic wears more compactly on smaller wrists compared to the HydroConquest Automatic at 41mm. Water resistance differs: 50m (5 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Junghans sits in the lower tier
The Junghans Form A Automatic sits at $1,000–$1,500 and the Longines HydroConquest Automatic at $1,500–$2,500. On the specs that outlast any price: the Form A Automatic uses Flat Sapphire with Anti-Reflective Coating with 38 Hours, against Sapphire with Anti-Reflective Coating and 72 Hours on the HydroConquest Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 300m (30 ATM)
The Form A Automatic is rated to 50m (5 ATM) while the HydroConquest Automatic handles 300m (30 ATM). The HydroConquest Automatic offers superior water resistance.
Materials Face-Off
| Component | Junghans Form A Automatic | Longines HydroConquest Automatic |
|---|---|---|
| Case alloy | 316L stainless steel — standard grade for mid-range watchmaking. Hypoallergenic, corrosion-resistant. | Zirconium oxide (ZrO₂) with engraved and paint-filled 60-minute dive scale Mohs 8.5 |
| Crystal | Flat sapphire (Mohs 9) with anti-reflective coating on the underside — provides excellent clarity with minimal internal glare. Note — Unlike the Max Mohs 9 | Flat sapphire with anti-reflective coating on the underside Mohs 9 |
| Caseback crystal | Tinted mineral glass (smoke/grey tint) — provides partial view of the movement while maintaining a subtle aesthetic. | Si hairspring in the L888.5 caliber — introduced 2020 across the HydroConquest line |
| Dial material | Brass-base dial with matte silver lacquer finish, embossed (stamped) square minute track producing three-dimensional relief. | Brushed flanks with polished bevel edges — mixed finishing for visual depth |
| Strap | Black calfskin leather with polished stainless steel pin buckle. Leather is adequate quality but not luxury-grade. | Applied to sword-style hands and all hour indices |
Cost of Ownership Compared
The Junghans Form A Automatic saves you $372 over 5 years of ownership
Who Should Pick Which
Pick the Junghans Form A Automatic if…
- Enthusiasts wanting proven Swiss/Japanese quality in the $1,000–$2,000 sweet spot
- Those who prioritize scratch resistance — sapphire crystal
- Dress watch seekers who want understated elegance
Pick the Longines HydroConquest Automatic if…
- Best-in-class 72-hour power reserve at sub-$2,000
- Silicon hairspring antimagnetic protection at an accessible price
- Swiss heritage enthusiasts — Longines' 1832 founding and Olympic/aviation history
- Legitimate 300m dive capability with everyday wearability
- Value seekers — at grey-market pricing the spec-per-dollar is nearly unbeatable
Junghans Form A Automatic
- ETA 2824-2 at a $1,000–$1,500 band price — fair value but not prestige movement. NOMOS offers in-house for only slightly more.
- 38-hour power reserve — leaves unworn for a weekend and it's stopped by Monday
- No lume / dress-only — not versatile for active or outdoor use
- Limited US distribution — difficult to try on in person outside major cities
Longines HydroConquest Automatic
- ETA-base movement at this price — excellent but not "in-house" in the purist sense
- 21mm lug width — awkward for aftermarket straps (most are 20mm or 22mm)
- 25,200 vph (3.5 Hz) — seconds hand sweep is less smooth than 28,800 vph competitors
- Not COSC-certified — no chronometer guarantee (unlike Tudor or Omega at similar prices)
Our Verdict
Junghans
Form A Automatic
Choose the Junghans Form A Automatic if you prioritize Swiss ETA Base, German-Finished engineering, Made in Germany craftsmanship, and 50m (5 ATM) water resistance. At $1,000–$1,500, it delivers Automatic J800.2 (ETA 2824-2) with 38 Hours power reserve.
Check Price on AmazonLongines
HydroConquest Automatic
Choose the Longines HydroConquest Automatic if you value ETA-Based Automatic with Silicon Balance Spring technology, Swiss Made heritage, and 41mm proportions. At $1,500–$2,500, the Automatic L888.5 with 72 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Junghans Form A Automatic and Longines HydroConquest Automatic represent two distinct approaches to fine watchmaking — the Junghans bringing Made in Germany tradition while Longines delivers Swiss Made engineering.
Frequently Asked Questions
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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.