brand Historical Collection - 2021

Alpina Heritage AL-520BY4H6 Seastrong Heritage Diver 300 Watch

This product belongs to the historical collection of Alpina. It is no longer available / for sale.

Specifications

Alternative article number	AL-520
Ean	7630428448646
Diameter	42 mm
Water Resistance	30 Bar (Dive)
Warranty	2 Year Warranty Free 1 year extra warranty on Auer.lu

Functions

Time	hours - Analogue hand
Calendar	Date - Window

Original fitting bands/bracelets for this watch

Alpina Straps ALS-NT21X18 Strap

Brown leather strap without buckle

€125.- Incl 17% btw

● In stock

Alpina Straps ALS-NT21X18 Strap Brown leather strap without buckle

€125.- Incl 17% btw

Strap information

Band material	Leather
Strap width	21 mm
Lug width	21 mm
Band width at clasp	18 mm
Band color	Brown
Color stitching	Beige
Clasp Type	None
Clasp color	N/A
Length band at 12 o' clock (mm)	80 mm
Length band at 6 o' clock (mm)	120 mm
Mount type	Pushpins
Straight strap mount	Yes

100% original brand watch bands
Free delivery Watches above €100
Official dealer of Alpina

The best alternative straps

Your original strap is no longer in production. The following straps are from the same collection and also fit your watch.

Alpina ALR-BN21X18

ALR-BN21X18 21 mm Black Silicone Rubber Strap without buckle

€79.-

● In stock

Compare Error View Product

Alpina ALS-BRB21X18

Seastrong 21 mm Brown leather strap without buckle

€125.-

● In stock

Compare Error View Product

Alpina ALR-BW21X18

ALR-BW21X18 21 mm Black Silicone Rubber Strap without buckle

€79.-

● Back in stock soon

Compare Error View Product

General information

Ean	7630428448646
Brand	Alpina
Category	Heritage
Name	Seastrong Heritage Diver 300
Year	2021 Spring / Summer
Display Type	Analog
Swiss Made	Yes
Water Resistance	30 Bar (Dive)
Dial color	Black
Hand colors (h-m-s)	Gold, Gold, Gold

Case information

Case code	AL520BY4H6
Diameter	42 mm
Case Thickness	12.3 mm
Case material	Stainless steel
Case Shape	Round
Case color	Silver
Back case material	Stainless steel
Back Case	Screwed case back
Material crystal	Sapphire
Crown	Screw crown
Bezel Function	Recreational diving
Rotating Bezel	Bi-directional

Movement information

Movement part nr

SW200 ( See specifications )

Download manual (English)

Movement Brand	Sellita
Swiss movement	Yes
Display Type	Analog
Mechanism	Mechanical Automatic
Battery	No battery needed
Power reserve	38
Frequency	28800
Jewels	26
Hackable	Yes
Skeletonized	No

Strap information

Band material	Leather
Strap width	21 mm
Lug width	21 mm
Band width at clasp	18 mm
Band color	Brown
Color stitching	Beige
Clasp Type	Buckle
Clasp color	Silver
Band sizing by HWG?	No
Mount type	Pushpins
Straight strap mount	Yes
Suitable for wrist size	160 mm - 210 mm
Original strap	Strap Alpina ALS-NT21X18

Time

hours	Analogue hand
minutes	Analogue hand
Seconds	Analogue hand

Calendar

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Popular products

Alpina Heritage AL-520BY4H6 Seastrong Heritage Diver 300 Watch

Original fitting bands/bracelets for this watch

Alpina Straps ALS-NT21X18 Strap

Brown leather strap without buckle

Strap information

The best alternative straps

General information

Case information

Movement information

Strap information

Time

Calendar