Head-to-Head Comparison

Longines Master Collection Moonphase vs Orient Sun & Moon

Two dress watchs compared — $2,500–$5,000 vs $250–$500

Quick Verdict

The Orient Sun & Moon ($250–$500) delivers Orient In-House Automatic (Hacking, Hand-Winding) technology in the tier below the Longines Master Collection Moonphase ($2,500–$5,000). The Sun & Moon measures 41.5mm and is rated 50m (5 ATM). The Master Collection Moonphase justifies its premium with Swiss Made heritage and Automatic Caliber L899. Both represent excellent choices in the dress watch category.

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Longines Master Collection Moonphase

Longines

Master Collection Moonphase

$2,500–$5,000

Orient Sun & Moon

Orient

Sun & Moon

$250–$500

Specifications Compared

FeatureLongines Master Collection MoonphaseOrient Sun & Moon
Price$2,500–$5,000$250–$500
Case Size40mm41.5mm
MovementAutomatic Caliber L899Automatic Caliber F6B24
Caliber TypeAutomatic (ETA A31.L91 base)Orient In-House Automatic (Hacking, Hand-Winding)
Power Reserve72 Hours40 Hours
Water Resistance30m (3 ATM)50m (5 ATM)
CrystalSapphire CrystalMineral Glass
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeMade in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Longines's design language vs Orient's approach

The Longines Master Collection Moonphase features a Stainless Steel case at 40mm with Sapphire Crystal protection. The Orient Sun & Moon offers Stainless Steel construction at 41.5mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Longines

Automatic Caliber L899 vs Automatic Caliber F6B24

The Master Collection Moonphase runs the Automatic Caliber L899 (Automatic (ETA A31.L91 base), 72 Hours power reserve) at 25,200 vph (3.5 Hz) frequency. The Sun & Moon uses the Automatic Caliber F6B24 (Orient In-House Automatic (Hacking, Hand-Winding), 40 Hours reserve) at 21,600 vph (3 Hz). The Master Collection Moonphase edges ahead on power reserve.

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Wearability & Fit

Edge: Longines

40mm vs 41.5mm — different wrist presence

At 40mm, the Master Collection Moonphase wears more compactly on smaller wrists compared to the Sun & Moon at 41.5mm. Water resistance differs: 30m (3 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Orient

Orient sits in the lower tier

The Longines Master Collection Moonphase sits at $2,500–$5,000 and the Orient Sun & Moon at $250–$500. On the specs that outlast any price: the Master Collection Moonphase uses Sapphire Crystal with 72 Hours, against Mineral Glass and 40 Hours on the Sun & Moon. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Orient

30m (3 ATM) vs 50m (5 ATM)

The Master Collection Moonphase is rated to 30m (3 ATM) while the Sun & Moon handles 50m (5 ATM). The Sun & Moon offers superior water resistance.

Our Verdict

Longines

Master Collection Moonphase

Choose the Longines Master Collection Moonphase if you prioritize Automatic (ETA A31.L91 base) engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $2,500–$5,000, it delivers Automatic Caliber L899 with 72 Hours power reserve.

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Orient

Sun & Moon

Choose the Orient Sun & Moon if you value Orient In-House Automatic (Hacking, Hand-Winding) technology, Made in Japan heritage, and 41.5mm proportions. At $250–$500, the Automatic Caliber F6B24 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Longines Master Collection Moonphase and Orient Sun & Moon represent two distinct approaches to the dress watch category — the Longines bringing Swiss Made tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Longines Master Collection Moonphase ($2,500–$5,000) offers Automatic Caliber L899 with 72 Hours power reserve, while the Orient Sun & Moon ($250–$500) features Automatic Caliber F6B24 with 50m (5 ATM) water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Made in Japan engineering.
The Orient Sun & Moon offers better upfront value, sitting a tier lower at $250–$500. However, the Longines Master Collection Moonphase may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Master Collection Moonphase at 40mm with 30m (3 ATM) water resistance handles everyday situations. The Sun & Moon at 41.5mm with 50m (5 ATM) is similarly capable. The Master Collection Moonphase uses Sapphire Crystal while the Sun & Moon uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

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.