Item #: 20320748

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Men's Alpina Seastrong Diver 300 Heritage Automatic Strap Watch with Ivory Dial (Model: AL-525S4H6)

Name: Men's Alpina Seastrong Diver 300 Heritage Automatic Strap Watch with Ivory Dial (Model: AL-525S4H6)
Brand: Alpina
SKU: 20320748
Price: 1017.0 USD
Availability: OutOfStock
Rating: 5.0 (1 reviews)

$1,017.00

$1,695.00

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From the Alpina Seastrong Diver 300 Heritage collection, this men's watch features an ivory dial with a screw-down crown, a 60-minute internal turning bezel, and a date display at the four o'clock hour in a 42.0mm stainless steel case. Automatically generating electrical energy by the motion of your wrist, this watch stores the energy in a self-recharging battery that never needs to be changed. The black rubber strap with white stitching secures with a buckle clasp. Water-resistant to 300 meters, this watch includes a one-year limited manufacturer warranty.

Item #: 20320748

Content & Care

Typographic errors are subject to correction. Merchandise enlarged to show detail and may not always be exactly as pictured. Promotions, prices, styles and availability may vary by store and online.

Warranty
1 Year Limited Manufacturer Warranty

Typographic errors are subject to correction. Merchandise enlarged to show detail and may not always be exactly as pictured.

Stone(s)

Stone Type
No Stone

Metal(s)

Metal Type
Stainless Steel

Metal Color White

Watch Design

Model Number AL-525S4H6

Watch Brand Alpina

Watch Style Strap

Movement
Automatic (Mechanical)

Watch Display Type Analog

Watch Power Source Battery Rechargeable by Movement

Watch Resistance in Meters 300 m

Watch Band Style Strap

Watch Band Color Black

Watch Band Material Rubber

Watch Clasp Type Buckle

Watch Attachment No

Watch Case Size 42.0 mm

Watch Dial Shape Round

Watch Dial Color Ivory

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.

From the Alpina Seastrong Diver 300 Heritage collection, this men's watch features an ivory dial with a screw-down crown, a 60-minute internal turning bezel, and a date display at the four o'clock hour in a 42.0mm stainless steel case. Automatically generating electrical energy by the motion of your wrist, this watch stores the energy in a self-recharging battery that never needs to be changed. The black rubber strap with white stitching secures with a buckle clasp. Water-resistant to 300 meters, this watch includes a one-year limited manufacturer warranty.

Item #: 20320748

Content & Care

Typographic errors are subject to correction. Merchandise enlarged to show detail and may not always be exactly as pictured. Promotions, prices, styles and availability may vary by store and online.

Warranty
1 Year Limited Manufacturer Warranty

Typographic errors are subject to correction. Merchandise enlarged to show detail and may not always be exactly as pictured.

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Ring Sizing Guide

Find your size by measuring either a string you've wrapped around your finger or by using a ring that fits. Then, use the ring size chart below to find your size.

Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle. With a pen, carefully mark the spot where the string overlaps. For accuracy, make the marks small. Unwrap your marked length. With a ruler, measure it in millimeters. Find your measurement below.

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

Need a custom size? Chat With Us

Still not sure about your ring size? Use our printable ring sizing chart and a ring that fits you. Follow the instructions on the page to find your correct size.

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Men's Alpina Seastrong Diver 300 Heritage Automatic Strap Watch with Ivory Dial (Model: AL-525S4H6)

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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

The 4Cs are a way to compare diamond quality and value. Each "C" has its own grading scale for evaluating quality. Explore them below.

People often mistake carats as a measurement of size, but they actually measure approximate weight (CTW = Carat Total Weight). Typically, a heavier diamond appears larger, but size isn't everything. Two diamonds of equal carat weight can have significantly different value when the other Cs are considered.

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

Like any rock or mineral, diamonds can have flaws. Choosing a diamond with a difficult-to-detect inclusion or blemish can be a great way to save on cost without sacrificing beauty.

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

Diamonds come out of the earth in many different colors. The market has traditionally valued white diamonds higher than others, and the grading scale offers five groups of 23 letters to reflect that.

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

Cut refers to a stone's shape, facet, and polish. Sometimes diamonds are cut so they're heavier, fetching more value for their carat weight. Sometimes they're cut to hide or minimize inclusions by expert diamond cutters skilled at bringing the brilliance out of each diamond they work with.

Grade Description

EX Excellent

VG Very Good

G Good

F Fair

P Poor

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Men's Alpina Seastrong Diver 300 Heritage Automatic Strap Watch with Ivory Dial (Model: AL-525S4H6)

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Watch Design
Model Number	AL-525S4H6
Watch Brand	Alpina
Watch Style	Strap
Movement	Automatic (Mechanical)
Watch Display Type	Analog
Watch Power Source	Battery Rechargeable by Movement
Watch Resistance in Meters	300 m
Watch Band Style	Strap
Watch Band Color	Black
Watch Band Material	Rubber
Watch Clasp Type	Buckle
Watch Attachment	No
Watch Case Size	42.0 mm
Watch Dial Shape	Round
Watch Dial Color	Ivory

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

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

	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

	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

Men's Alpina Seastrong Diver 300 Heritage Automatic Strap Watch with Ivory Dial (Model: AL-525S4H6)

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