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Men's Citizen Eco-Drive® Promaster Air Skyhawk Black IP Chronograph Watch with Black Dial (Model: JY8127-59E)
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Have a question about Men's Citizen Eco-Drive® Promaster Air Skyhawk Black IP Chronograph Watch with Black Dial (Model: JY8127-59E)?
Need help with this Men's Citizen Eco-Drive® Promaster Air Skyhawk Black IP Chronograph Watch with Black Dial (Model: JY8127-59E)?
- The black dial features luminous hands and markers, a trio of chronograph sub-dials, yellow accents, and digital displays with backlight.
- 46.0mm black stainless steel case with sapphire crystal and a rotating pilot's slide rule bezel
- Functions include atomic synchronization, perpetual calendar, dual time, 2 alarms, countdown timer, UTC display, and a power reserve indicator.
- Japanese quartz and digital movement keep accurate time.
- Citizen Eco-Drive® technology harnesses the power of any light source so you never need a new battery.
- The black stainless steel link bracelet secures with a fold-over clasp.
- Water resistant to 200 meters, this watch includes a 5-year limited manufacturer warranty, with an additional 1-year warranty when you register your watch with Citizen.
- We are an authorized Citizen dealer.
Stone(s) | |
---|---|
Stone Type
|
No Stone |
Metal(s) | |
---|---|
Metal Type
|
Stainless Steel |
Metal Color | Black |
Metal Finish | Polished |
Metal Plating Type | Ion-Plated |
Plating Color | Black |
Watch Design | |
---|---|
Model Number | JY8127-59E |
Watch Brand | Citizen |
Watch Style | Bracelet |
Movement
|
Quartz |
Watch Display Type | Chronograph |
Watch Power Source | Battery Rechargeable by Light |
Watch Resistance in Meters | 200 m |
Watch Band Style | Bracelet |
Watch Band Color | Black |
Watch Band Material | Stainless Steel |
Watch Clasp Type | Fold-Over |
Watch Attachment | No |
Watch Case Size | 46.0 mm |
Watch Dial Shape | Round |
Watch Dial Color | Black |
Shipping
Ship to you, to your store, or to a UPS Access Point near you. Free shipping offer may be modified or terminated at any time without notice. Learn More
Returns & Exchanges
Your online purchase may be returned to any of our stores or returned by mail to our distribution center.
Returns are allowed within 30 days from the purchase (shipment) date and exchanges within 60 days of the purchase (shipment) date for jewelry, and within 30 days from the purchase (shipment) date for watches. Jewelry must be in good condition with all original certificates and accessories. Watches must be unworn, unaltered and in original condition to be accepted for return or exchange.
- The black dial features luminous hands and markers, a trio of chronograph sub-dials, yellow accents, and digital displays with backlight.
- 46.0mm black stainless steel case with sapphire crystal and a rotating pilot's slide rule bezel
- Functions include atomic synchronization, perpetual calendar, dual time, 2 alarms, countdown timer, UTC display, and a power reserve indicator.
- Japanese quartz and digital movement keep accurate time.
- Citizen Eco-Drive® technology harnesses the power of any light source so you never need a new battery.
- The black stainless steel link bracelet secures with a fold-over clasp.
- Water resistant to 200 meters, this watch includes a 5-year limited manufacturer warranty, with an additional 1-year warranty when you register your watch with Citizen.
- We are an authorized Citizen dealer.
Stone(s) | |
---|---|
Stone Type
|
No Stone |
Metal(s) | |
---|---|
Metal Type
|
Stainless Steel |
Metal Color | Black |
Metal Finish | Polished |
Metal Plating Type | Ion-Plated |
Plating Color | Black |
Watch Design | |
---|---|
Model Number | JY8127-59E |
Watch Brand | Citizen |
Watch Style | Bracelet |
Movement
|
Quartz |
Watch Display Type | Chronograph |
Watch Power Source | Battery Rechargeable by Light |
Watch Resistance in Meters | 200 m |
Watch Band Style | Bracelet |
Watch Band Color | Black |
Watch Band Material | Stainless Steel |
Watch Clasp Type | Fold-Over |
Watch Attachment | No |
Watch Case Size | 46.0 mm |
Watch Dial Shape | Round |
Watch Dial Color | Black |
Shipping
Ship to you, to your store, or to a UPS Access Point near you. Free shipping offer may be modified or terminated at any time without notice. Learn More
Returns & Exchanges
Your online purchase may be returned to any of our stores or returned by mail to our distribution center.
Returns are allowed within 30 days from the purchase (shipment) date and exchanges within 60 days of the purchase (shipment) date for jewelry, and within 30 days from the purchase (shipment) date for watches. Jewelry must be in good condition with all original certificates and accessories. Watches must be unworn, unaltered and in original condition to be accepted for return or exchange.
Ring Sizing Guide



Standard (US) Size | Internal Diameter | European Size |
---|---|---|
3 | 14.0 mm | - |
3.5 | 14.4 mm | 46 |
4 | 14.8 mm | 47 |
4.5 | 15.2 mm | 48 |
5 | 15.6 mm | 50 |
5.5 | 16.0 mm | 51 |
6 | 16.45 mm | 52 |
6.5 | 16.9 mm | 53 |
7 | 17.3 mm | 54 |
7.5 | 17.7 mm | 56 |
8 | 18.2 mm | 57 |
8.5 | 18.6 mm | 58 |
9 | 19.0 mm | 60 |
9.5 | 19.4 mm | 61 |
10 | 19.8 mm | 62 |
10.5 | 20.2 mm | 64 |
11 | 20.6 mm | 65 |
11.5 | 21.0 mm | 66 |
12 | 21.4 mm | 67 |
12.5 | 21.8 mm | 69 |
13 | 22.2 mm | 70 |
13.5 | 22.6 mm | 71 |

Diamond Carat Weights and Variance Ranges
Carat Weight | Variance Range |
---|---|
< 1 carat | |
Diamond Accent | 0.001 - 0.039 |
1/20 carat | .04-.06 |
1/10 carat | .085-.11 |
1/8 carat | .115-.14 |
1/6 carat | .145-.17 |
1/5 carat | .18-.22 |
1/4 carat | .23-.28 |
1/3 carat | .29-.36 |
3/8 carat | .37-.44 |
1/2 carat | .45-.57 |
5/8 carat | .58-.68 |
3/4 carat | .69-.79 |
7/8 carat | .80-.94 |
1 carat | .95-1.11 |
1/5 carats | 1.18 - 1.22 |
1/4 carats | 1.23-1.28 |
1/3 carats | 1.29-1.36 |
3/8 carats | 1.37-1.44 |
1/2 carats | 1.45-1.57 |
5/8 carats | 1.58-1.68 |
3/4 carats | 1.69-1.79 |
7/8 carats | 1.80-1.94 |
2 carats | 1.95-2.11 |
1/8 carats | 2.115 - 2.14 |
1/6 carats | 2.145 - 2.17 |
1/5 carats | 2.18 - 2.22 |
1/4 carats | 2.23 - 2.28 |
1/3 carats | 2.29 - 2.36 |
3/8 carats | 2.37 - 2.44 |
1/2 carats | 2.45 - 2.57 |
5/8 carats | 2.58 - 2.68 |
3/4 carats | 2.69 - 2.79 |
7/8 carats | 2.80 - 2.94 |
3 carats | 2.95-3.11 |
1/8 carats | 3.115 - 3.14 |
1/4 carats | 3.23 - 3.28 |
1/3 carats | 3.29 - 3.36 |
3/8 carats | 3.37 - 3.44 |
1/2 carats | 3.45 - 3.57 |
5/8 carats | 3.58 - 3.68 |
3/4 carats | 3.69 - 3.79 |
7/8 carats | 3.80 - 3.94 |
4 carats | 3.95-4.11 |
1/8 carats | 4.115 - 4.14 |
1/6 carats | 4.145 - 4.17 |
1/5 carats | 4.18 - 4.22 |
1/4 carats | 4.23 - 4.28 |
1/3 carats | 4.29 - 4.36 |
3/8 carats | 4.37 - 4.44 |
1/2 carats | 4.45 - 4.57 |
5/8 carats | 4.58 - 4.68 |
3/4 carats | 4.69 - 4.79 |
7/8 carats | 4.80 - 4.94 |
5 carats | 4.95-5.11 |
1/8 carats | 5.115 - 5.14 |
1/6 carats | <5.145 - 5.17 |
1/5 carats | 5.18 - 5.22 |
1/4 carats | 5.23 - 5.28 |
1/3 carats | 5.29 - 5.36 |
3/8 carats | 5.37 - 5.44 |
1/2 carats | 5.45 - 5.57 |
5/8 carats | 5.58 - 5.68 |
3/4 carats | 5.69 - 5.79 |
7/8 carats | 5.80 - 5.94 |
6 carats | 5.95-6.11 |
1/8 carats | 6.115 - 6.14 |
1/6 carats | 6.145 - 6.17 |
1/5 carats | 6.18 - 6.22 |
1/4 carats | 6.23 - 6.28 |
1/3 carats | 6.29 - 6.36 |
3/8 carats | 6.37 - 6.44 |
1/2 carats | 6.45 - 6.57 |
5/8 carats | 6.58 - 6.68 |
3/4 carats | 6.69 - 6.79 |
7/8 carats | 6.80 - 6.94 |
7 carats | 6.95-7.11 |
Diamond Carat, Clarity, Color, and Cut
Carat Weight | Millimeter Size (approximate) | Millimeter Size(approx.) | |
---|---|---|---|
![]() |
0.05 ct | 2.5 mm | |
![]() |
0.25 ct | 4.1 mm | |
![]() |
0.50 ct | 5.2 mm | |
![]() |
0.75 ct | 5.8 mm | |
![]() |
1.00 ct | 6.5 mm | |
![]() |
1.25 ct | 6.9 mm | |
![]() |
1.50 ct | 7.4 mm | |
![]() |
2.00 ct | 8.2 mm |
The GIA Diamond Clarity Grade scale has 11 grades in all. Most jewelry stores carry VVS as their highest grade. VS or SI are considered by most to be "fine quality" diamonds.
Grade | Description | |
---|---|---|
![]() |
F | Flawless inside and out |
![]() |
IF | Internally flawless — blemishes on the surface but not inside the diamond |
![]() |
VVS1, VVS2 |
Very, very slightly included |
![]() |
VS1, VS2 | Very slightly included |
![]() |
SI1, SI2 | Slightly included |
![]() |
I1, I2, I3 | Included and detectable with the eye |
Grade | Description | |
---|---|---|
![]() |
D | Top of the scale — colorless, rarest and most expensive |
![]() |
G | Near colorless |
![]() |
I | Still appears white, but more affordable |
![]() |
J | Human eye begins to detect a yellow tint |
![]() |
Z | Unmistakably yellow in color |
Grade | Description | |
---|---|---|
![]() |
EX | Excellent |
![]() |
VG | Very Good |
![]() |
G | Good |
![]() |
F | Fair |
![]() |
P | Poor |
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