Orient Star Open Heart Moon Phase Automatic Gray Dial Sapphire Glass Watch RE-AY0107N

Items Description

The Orient Star Open Heart Moon Phase Automatic Gray Dial Sapphire Glass Watch RE-AY0107N is a mechanical dress watch that combines Japanese automatic movement with the refined complications of a moon phase display and an open heart aperture. Designed for watch enthusiasts who value traditional horology, this timepiece offers a complex yet legible dial layout that showcases both elegant aesthetics and functional engineering. The gray dial, framed in polished stainless steel, provides a versatile foundation that suits formal settings and everyday wear alike.

 

At the heart of this Orient Star Classic collection model is the in-house automatic caliber, which beats at 3Hz and delivers more than 50 hours of power reserve. The open heart cutout at 9 o'clock reveals the regulation system in motion, offering a continuous view of the balance wheel and escapement at work. This combination of a moon phase sub-dial, open heart window, and automatic winding positions the RE-AY0107N as a well-rounded entry point into mechanical watch collecting, pairing useful complications with the reliability expected from Orient Star's manufacturing standards.

 

Key Advantages of the Orient Star Open Heart Moon Phase Automatic Gray Dial Sapphire Glass Watch RE-AY0107N

 

1. Reliable In-House Automatic Calibre

The mechanical movement inside this watch is manufactured by Orient Star and is built for dependable daily performance. Its automatic winding system draws energy from the natural motion of the wrist, eliminating the need for batteries and keeping the watch running as long as it is worn regularly.

 

• Power Reserve: Provides over 50 hours of operation when fully wound, allowing the watch to sit overnight or over a weekend without stopping.
• Accuracy Standard: Regulated to an average rate of +15 seconds to -5 seconds per day, a figure stated by Orient Star as a controlled production tolerance. Specs info from Orientstar official page.
• Frequency: Operates at 21,600 vibrations per hour (3Hz), contributing to smooth seconds hand motion and stable timekeeping.
• Manual Winding: The crown also supports hand winding, so users can top up the mainspring when the watch has not been worn for some time.

 

2. Moon Phase Complication with Practical Function

This model features a dedicated moon phase sub-dial, one of the more traditional complications in mechanical watchmaking. Rather than serving as a purely decorative element, the display tracks the lunar cycle with sufficient precision to require only infrequent correction.

 

• Lunar Display: A graphical moon and star motif advances through a 29.5-day cycle, mirroring the actual phases of the moon as seen from Earth.
• Adjustability: A corrector push-piece allows the wearer to advance the moon phase independently, simplifying the monthly calendar calibration process.
• Dial Balance: The moon phase sub-dial sits at 6 o'clock, creating a symmetrical layout with the open heart window at 9 o'clock and the date window opposite.

 

3. Gray Dial Open Heart Display

The gray dial of this RE-AY0107N is not a uniform surface but a layered composition that pairs texture with mechanical exposure. The open heart aperture at the 9 o'clock position cuts through the dial to reveal the balance wheel oscillating beneath, giving the wearer a direct view into the movement's regulation system.

 

• Visual Depth: The cutout creates a three-dimensional quality that changes character as light moves across the dial throughout the day.
• Dial Finish: The gray surface is finished with a subtle texture that reduces glare while providing a neutral backdrop for the applied hour markers. Reference aBlogtoWatch for dial detail.
• Readability: Silver-tone hands and markers maintain contrast against the gray base, while the date window at 3 o'clock remains legible without disrupting the dial symmetry.
• Versatile Styling: The gray tone pairs readily with both cool and warm clothing palettes, making this a watch that transitions from office wear to evening attire without friction.

 

4. Sapphire Crystal and Case Construction

The watch is fitted with a sapphire crystal, a material selected for its hardness and optical clarity. Sapphire ranks high on the Mohs scale, offering strong resistance to everyday scratches that can affect mineral glass or acrylic crystals.

 

• Scratch Resistance: The crystal protects the dial and its complications from abrasions encountered during normal wrist wear.
• Domed Profile: The crystal features a slight dome that adds vintage character while preserving a slim overall case profile. Reference Orient Star Classic collection materials.
• Case Dimensions: The stainless steel case is sized at 41mm in diameter, a middle-ground proportion that fits a broad range of wrist sizes without appearing oversized.
• Exhibition Case Back: A transparent rear window exposes the decorated automatic movement, including the rotor and perlage finishing typical of Orient Star's mechanical calibres.

 

The Orient Star Open Heart Moon Phase Automatic Gray Dial Sapphire Glass Watch RE-AY0107N is best suited for buyers who want an accessible mechanical watch with multiple complications and a visible movement, without stepping up to Swiss luxury pricing. For those beginning a collection or seeking a daily automatic with a moon phase and open heart, this model offers a balanced combination of Japanese manufacturing, traditional watchmaking features, and a dial design that remains easy to read at a glance.

Specifications of Orient Star Open Heart Moon Phase Automatic Gray Dial Sapphire Glass Watch RE-AY0107N

Brand Name	Orient Star
Model number	RE-AY0107N
Part Number	RE-AY0107N
Item Shape	Round
Dial window material type	Glass, Sapphire Crystal
Clasp	Push Button Deployment Clasp
Case material	Stainless Steel
Case diameter	41 millimeters
Case Thickness	13.1 millimeters
Band Material	Leather
Band width	21 millimeters
Band Color	Silver
Dial color	Gray
Bezel function	Stationary
Calendar	Date
Special features	2 years international warranty
Movement	Japanese Automatic
Water resistant depth	100 Meters
Display Type	Analog

Prev:  ORIENT Classical Small Second Mechanical Wristwatch RN-AP0002S Men's     Next: ORIENT RA-AC0L05G Men's Editon M-Force Delta Rubber Strap Brown Dial Automatic Dive Watch

Specifications
[Brand Name ]	Orient Star
[Model number ]	RE-AY0107N
[Part Number ]	RE-AY0107N
[Item Shape ]	Round
[ Dial window material type ]	Glass, Sapphire Crystal
[Clasp ]	Push Button Deployment Clasp
[Case material ]	Stainless Steel
[Case diameter ]	41 millimeters
[Case Thickness ]	13.1 millimeters
[Band Material ]	Leather
[Band width ]	21 millimeters
[Band Color ]	Silver
[Dial color ]	Gray
[ Bezel function ]	Stationary
[ Calendar ]	Date
[Special features ]	2 years international warranty
[ Movement ]	Japanese Automatic
[ Water resistant depth ]	100 Meters
[Display Type ]	Analog

Item Reviews

(Total0Items Reviews for this item)

• No comment

Total 0 Items Reviews for this item

• First
• Prev
• Next
• Last

Email Address:
Rating:
Content: