Head-to-Head Comparison

Longines HydroConquest Automatic vs Bulova Lunar Pilot Chronograph

Longines's diver meets Bulova's chronograph

Quick Verdict

The Bulova Lunar Pilot Chronograph (~$556) delivers High-Performance Quartz technology at $1,444 less than the Longines HydroConquest Automatic (~$2,000). 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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Longines HydroConquest Automatic

Longines

HydroConquest Automatic

~$2,000

Bulova Lunar Pilot Chronograph

Bulova

Lunar Pilot Chronograph

~$556

Specifications Compared

FeatureLongines HydroConquest AutomaticBulova Lunar Pilot Chronograph
Price~$2,000~$556
Case Size41mm45mm
MovementAutomatic L888.5High-Performance 262kHz Quartz
Caliber TypeETA-Based Automatic with Silicon Balance SpringHigh-Performance Quartz
Power Reserve72 HoursN/A (Quartz)
Water Resistance300m (30 ATM)50m (5 ATM)
CrystalSapphire with Anti-Reflective CoatingSapphire Crystal
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeMade in Japan (Citizen Group)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Longines's design language vs Bulova's approach

⚙️

Movement & Performance

Edge: Longines

Automatic L888.5 vs High-Performance 262kHz Quartz

📏

Wearability & Fit

Edge: Longines

41mm vs 45mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Bulova

Bulova is $1,444 more affordable

💧

Water Resistance

Edge: Longines

300m (30 ATM) vs 50m (5 ATM)

Materials Face-Off

ComponentLongines HydroConquest AutomaticBulova 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

1 yr5 yr10 yr
Longines HydroConquest Automatic$2,281
$1.25/day
Purchase: $1,750Service: $400Insurance: $131
Bulova Lunar Pilot Chronograph$702
$0.38/day
Purchase: $625Service: $30Insurance: $47

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 $1,350 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 $1,750 — 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 ~$2,000, it delivers Automatic L888.5 with 72 Hours power reserve.

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Bulova

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 ~$556, the High-Performance 262kHz Quartz with N/A (Quartz) power reserve makes it a compelling choice.

Check Price on Amazon

The 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.

Frequently Asked Questions