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Orient Star Semi Skeleton RK-AT0003E vs Orient Star RK-AU0006S

Both are 39 mm Orient Star automatics with 100 m water resistance, 22 jewels and over 50 hours of power reserve, so the choice comes down to style and movement. The Semi Skeleton RK-AT0003E shows its F6R42 movement through an open dial, adds a power reserve indicator and a green dial, and has a narrower bezel for a larger-looking face. The Standard RK-AU0006S is the quieter watch: white dial, Roman numerals, date window, exhibition caseback and the F6N43 rated at +25 to -15 seconds a day. Buy the Semi Skeleton if you want the movement on display; buy the Standard if you want a classic dress watch with a stated accuracy figure.

  • Choose the Orient Star Semi Skeleton RK-AT0003E if you want an open-worked dial, a power reserve indicator and a green face that stands out from a plain dress watch.
  • Choose the Orient Star Standard RK-AU0006S if you want a clean white dial with Roman numerals, a date window and a published accuracy spec in a classic everyday watch.

Prices

  • Orient Star Semi Skeleton RK-AT0003E: $465.00 at The Japanese Factory (last seen Nov 10)
  • Orient Star RK-AU0006S: $478.87 at akibashipping (last seen Nov 10)
  • Difference: the Orient Star Semi Skeleton RK-AT0003E is $13.87 cheaper than the Orient Star RK-AU0006S at the latest prices (Nov 10)
Orient Star
Orient Star Contemporary Semi Skeleton RK-AT0003E Automatic Men's Wristwatch

Orient Star Semi Skeleton RK-AT0003E

Orient Star Contemporary Semi Skeleton RK-AT0003E Automatic Men's Wristwatch

$465.00at The Japanese FactoryChecked Nov 10
See all prices and details
Visit The Japanese Factory
Pros
  • Semi-skeleton dial makes the automatic movement part of the design
  • Power reserve indicator is genuinely useful on a manual-wind-capable watch
  • Green dial and narrowed bezel give a larger, more distinctive face
  • Sapphire crystal and 100 m water resistance suit daily wear
  • 39 mm case wears well on most wrists
Cons
  • Busier dial is less versatile for formal settings
  • No date window
  • No published accuracy rating for the F6R42
  • Skeletonized dials can be harder to read at a glance
Orient Star
Orient Star Contemporary Standard RK-AU0006S Men's Watch

Orient Star RK-AU0006S

Orient Star Contemporary Standard RK-AU0006S Men's Watch

5(1 rating)
$478.87at akibashippingChecked Nov 10
See all prices and details
Visit akibashipping
Pros
  • Clean white dial with Roman numerals reads easily and suits a suit
  • Date window adds everyday practicality
  • Published accuracy of +25 to -15 seconds a day
  • Exhibition caseback and deployant clasp feel more refined
  • Classic styling ages well
Cons
  • Plain dial lacks the visual interest of the Semi Skeleton
  • Roman numerals are not to everyone's taste
  • No power reserve indicator
  • Some listings show conflicting case-size figures, so check the 39 mm spec

What separates them

Orient Star Semi Skeleton RK-AT0003EOrient Star RK-AU0006S
DialGreen semi-skeleton with visible movement and power reserve indicatorWhite dial with Roman numeral indices and a date window
MovementCaliber F6R42, 22 jewels, 50+ hours reserveCaliber F6N43, 22 jewels, 50+ hours reserve, rated +25 to -15 sec/day
Case size39 mm, 12 mm thick, 149 g39 mm, about 12.3 mm thick
CrystalFlat sapphireSapphire crystal
CasebackSemi-skeleton dial shows the movement from the frontExhibition screwback shows the movement from behind
Water resistance100 m (10 ATM)100 m (10 ATM)
BraceletStainless steel, 20 mm band widthStainless steel, 20 mm lugs, fold-over push-button deployant clasp
StyleSportier, more visual, busier dialClassic dress watch, quieter and more versatile with a suit

Prices at every store

Orient Star Semi Skeleton RK-AT0003E

  • The Japanese FactoryNew

    In stockShips from Japan · duties may applyReturn policy

    $465.00Checked Nov 10
    Visit The Japanese Factory
Prices and history →

Orient Star RK-AU0006S

  • akibashippingNew

    In stockShips from Japan · duties may applyReturn policy

    $478.87Checked Nov 10
    Visit akibashipping
Prices and history →

Specs compared

SpecOrient Star Semi Skeleton RK-AT0003EOrient Star RK-AU0006S
MovementMechanical (Automatic)Mechanical (Automatic)
Water Resistance100 m (10 ATM)100 m (10 ATM)
Band MaterialStainless SteelStainless Steel
Dial ColorGreenSilver, White
Number of Jewels22 Jewels22 Jewels
Case Size39 mm39 mm
Case Thickness12 mm12 mm
CaliberF6R42F6N43
Case MaterialStainless Steel—
Band Width20 mm—
Drive Time50 hours or more—
Weight149g—
Show all 16 specsShow fewer specs
SpecOrient Star Semi Skeleton RK-AT0003EOrient Star RK-AU0006S
Lug Width—20 mm
Caseback—Screwback
Accuracy—Daily difference +25 to -15 seconds
Running Time—More than 50 hours

What reviewers say

Orient Star RK-AU0006S

Reviewers generally praise the Orient Star RK-AU0006S for its in-house movement, classic dial, and case finishing, considering it good value. Common criticisms include the basic bracelet, mineral crystal, and accuracy that is not as tight as some competitors.

What people mention
  • MovementPraisedReviewers appreciate the in-house automatic movement and its 50-hour power reserve.
  • AccuracyCriticisedSome owners report timekeeping outside the stated +25 to -15 seconds per day, finding it less accurate than expected.
  • BraceletCriticisedThe stainless steel bracelet and deployant clasp are often described as feeling basic or flimsy.
  • CrystalCriticisedThe use of mineral glass rather than sapphire is a common complaint.

Questions and answers

Which is better for everyday wear?
Both work daily: 39 mm steel cases, sapphire crystals and 100 m water resistance. The Standard is easier to read at a glance and has a date; the Semi Skeleton is more of a conversation piece.
Which has the better movement?
They are closely related Orient Star automatics with 22 jewels and over 50 hours of reserve. The Standard's F6N43 publishes an accuracy rating of +25 to -15 seconds a day; the Semi Skeleton's F6R42 does not, but adds a power reserve indicator.
Does either have a date?
Only the Standard RK-AU0006S has a date window. The Semi Skeleton's dial is given over to the open movement and power reserve display.
Which is more versatile?
The Standard's white dial and Roman numerals slip under a cuff and suit formal wear. The Semi Skeleton's green open dial is sportier and more casual.
Is the Semi Skeleton worth stepping up to?
Step up only if the open dial and power reserve indicator matter to you. If you want a classic look, a date and a stated accuracy figure, the Standard covers it.
Which lasts longer?
Both use comparable Orient Star automatic movements and steel cases, so service life is similar. Regular servicing matters more than the model choice.

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More comparisons

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  • Orient Star Contemporary Standard RK-AU0006S Men's Watch vs Orient Star RK-AV0B01S Men's Metal Contemporary Layered Skeleton Watch