Celebrating Seiko's 145th anniversary, this limited-edition Prospex Alpinist features a distinctive dial inspired by traditional Edo purple, honoring Tokyo's cultural heritage.

Powered by the automatic Caliber 6R55 movement with manual winding capability, it delivers a 72-hour power reserve and features 24 jewels with a stop second hand function.

The robust stainless steel case with super hard coating is complemented by a sapphire crystal with anti-reflective coating, a cow leather strap, and 20 bar water resistance.

Key Features

Brand	Seiko
Collection	Prospex
Model Number	HBC006J1
Gender	Men's
Caliber Number	6R55
Movement Type	Automatic with manual winding
Power Reserve	Approx. 72 hours (3 days)
Jewels	24
Precision	+25 to -15 seconds per day
Case Material	Stainless steel (super hard coating)
Case Diameter	39.5 mm
Case Thickness	12.7 mm
Lug-to-Lug	46.4 mm
Distance Between Lugs	20 mm
Crystal	Sapphire crystal with anti-reflective coating on inner surface
LumiBrite	LumiBrite on hands and indexes
Band Material	Cow leather
Clasp	Three-fold clasp with push button release
Water Resistance	20 bar
Magnetic Resistance	4,800 A/m
Features	Limited edition case back, rotating compass inner ring, screw-down crown, see-through screw case back

Highlights

Commemorative 145th Anniversary Limited Edition of 7,000 pieces
Automatic Caliber 6R55 movement with 72-hour power reserve and manual winding
Heritage Edo purple dial inspired by Tokyo aesthetic traditions
Durable stainless steel case with super hard coating and see-through case back
Rotating inner compass ring, sapphire crystal, and 20 bar water resistance

Frequently asked questions

What movement powers this watch?

It is powered by the Seiko Caliber 6R55 automatic movement with manual winding capability and a 72-hour power reserve.

What is the water resistance rating?

This watch has a water resistance rating of 20 bar.

How many pieces are produced for this limited edition?

This model is a limited edition of 7,000 pieces worldwide.

What material is used for the watch crystal?

The watch features a sapphire crystal with an anti-reflective coating on the inner surface.

What are the case dimensions of this watch?

The case measures 39.5 mm in diameter, 12.7 mm in thickness, and 46.4 mm from lug to lug.

What type of strap and clasp are included?

It comes with a cow leather band fitted with a three-fold clasp with push button release.

Seiko Prospex Purple Dial Automatic Men's Watch