Longines HydroConquest Automatic vs Bulova Lunar Pilot Chronograph
Longines's diver meets Bulova's chronograph
Quick Verdict
The Bulova Lunar Pilot Chronograph ($500–$1,000) delivers High-Performance Quartz technology in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Lunar Pilot Chronograph measures 45mm and is rated 50m (5 ATM). The HydroConquest Automatic justifies its premium with Swiss Made heritage and Automatic L888.5. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Longines HydroConquest Automatic | Bulova Lunar Pilot Chronograph |
|---|---|---|
| Price | $1,500–$2,500 | $500–$1,000 |
| Case Size | 41mm | 45mm |
| Movement | Automatic L888.5 | High-Performance 262kHz Quartz |
| Caliber Type | ETA-Based Automatic with Silicon Balance Spring | High-Performance Quartz |
| Power Reserve | 72 Hours | N/A (Quartz) |
| Water Resistance | 300m (30 ATM) | 50m (5 ATM) |
| Crystal | Sapphire with Anti-Reflective Coating | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Made in Japan (Citizen Group) |
Category-by-Category Analysis
Design & Aesthetics
Longines's design language vs Bulova's approach
The Longines HydroConquest Automatic features a Stainless Steel case at 41mm with Sapphire with Anti-Reflective Coating protection. The Bulova Lunar Pilot Chronograph offers Stainless Steel construction at 45mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic L888.5 vs High-Performance 262kHz Quartz
The HydroConquest Automatic runs the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours power reserve) at 25,200 vph (3.5 Hz) frequency. The Lunar Pilot Chronograph uses the High-Performance 262kHz Quartz (High-Performance Quartz, N/A (Quartz) reserve) at 262,144 Hz (High-Frequency Quartz). The HydroConquest Automatic edges ahead on power reserve.
Wearability & Fit
41mm vs 45mm — different wrist presence
At 41mm, the HydroConquest Automatic wears more compactly on smaller wrists compared to the Lunar Pilot Chronograph at 45mm. Water resistance differs: 300m (30 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Bulova sits in the lower tier
The Longines HydroConquest Automatic sits at $1,500–$2,500 and the Bulova Lunar Pilot Chronograph at $500–$1,000. On the specs that outlast any price: the HydroConquest Automatic uses Sapphire with Anti-Reflective Coating with 72 Hours, against Sapphire Crystal and N/A (Quartz) on the Lunar Pilot Chronograph. Service intervals are typically 5-7 years for both.
Water Resistance
300m (30 ATM) vs 50m (5 ATM)
The HydroConquest Automatic is rated to 300m (30 ATM) while the Lunar Pilot Chronograph handles 50m (5 ATM). The HydroConquest Automatic is better suited for water activities.
Materials Face-Off
| Component | Longines HydroConquest Automatic | Bulova Lunar Pilot Chronograph |
|---|---|---|
| Ceramic Bezel | Zirconium oxide (ZrO₂) with engraved and paint-filled 60-minute dive scale Mohs 8.5 | Bulova High Performance Quartz, 262 kHz (262,144 Hz) |
| Sapphire Crystal | Flat sapphire with anti-reflective coating on the underside Mohs 9 | Sapphire with anti-reflective coating |
| Silicon Balance Spring | Si hairspring in the L888.5 caliber — introduced 2020 across the HydroConquest line | Stainless steel 316L (brushed and polished) |
| 316L Stainless Steel | Brushed flanks with polished bevel edges — mixed finishing for visual depth | Fixed tachymeter |
| Super-LumiNova | Applied to sword-style hands and all hour indices | — |
Cost of Ownership Compared
The Bulova Lunar Pilot Chronograph saves you $1,579 over 5 years of ownership
Who Should Pick Which
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
Pick the Bulova Lunar Pilot Chronograph if…
- Strong value proposition under $1,000 with quality construction
- Those who prioritize scratch resistance — sapphire crystal
- Chronograph enthusiasts looking for a proven timing instrument
- Heritage enthusiasts drawn to ** Bulova's historical pedigree
- Buyers who prefer a commanding wrist presence — 45mm case
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)
Bulova Lunar Pilot Chronograph
- 45mm is large.
- Quartz won't satisfy mechanical purists.
- Bulova brand prestige is below Omega; some buyers feel the brand undersells the Apollo provenance.
Our Verdict
Longines
HydroConquest Automatic
Choose the Longines HydroConquest Automatic if you prioritize ETA-Based Automatic with Silicon Balance Spring engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $1,500–$2,500, it delivers Automatic L888.5 with 72 Hours power reserve.
Check Price on AmazonBulova
Lunar Pilot Chronograph
Choose the Bulova Lunar Pilot Chronograph if you value High-Performance Quartz technology, Made in Japan (Citizen Group) heritage, and 45mm proportions. At $500–$1,000, the High-Performance 262kHz Quartz with N/A (Quartz) power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Longines HydroConquest Automatic and Bulova Lunar Pilot Chronograph represent two distinct approaches to fine watchmaking — the Longines bringing Swiss Made tradition while Bulova delivers Made in Japan (Citizen Group) engineering.
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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.