The Seiko 5 Sports HDB001 is a versatile timepiece powered by the automatic caliber 4R34 movement with manual winding capability. Featuring a 24-hour dual time display hand, date calendar, and a 41-hour power reserve, it delivers dependable utility for everyday wear.

Crafted with a durable 39.4 mm stainless steel case and a curved Hardlex crystal, this watch provides robust protection alongside 10-bar water resistance. LumiBrite treatment on the hands and indexes ensures clear readability in low-light environments.

A matching stainless steel bracelet with a secure three-fold push-button release clasp offers comfortable all-day wear. The exhibition screw-down case back showcases the intricate mechanical movement within.

Key Features

Brand	Seiko
Model Number	HDB001
Collection	5 Sports
Department	Men's
Movement Type	Automatic with manual winding
Caliber Number	4R34
Power Reserve	Approx. 41 hours
Jewels	24
Case Material	Stainless steel
Case Diameter	39.4 mm
Case Thickness	13.6 mm
Lug-to-Lug	47.9 mm
Distance Between Lugs	20 mm
Crystal	Curved Hardlex
LumiBrite	Lumibrite on hands and index(es)
Clasp	Three-fold clasp with push button release
Bracelet Length	205.0 mm
Water Resistance	10 bar
Magnetic Resistance	4,800 A/m
Weight	147.0 g
Case Back	See-through & Screw case back
Functions	24-hour hand (dual time display function), Stop second hand function, Date display

Highlights

Seiko 4R34 automatic movement with manual winding capability
Dual time zone tracking via dedicated 24-hour hand
Curved Hardlex crystal and LumiBrite hands and markers
Durable stainless steel case and bracelet with push-button release clasp
10 bar water resistance and see-through exhibition case back

Frequently asked questions

What movement powers the Seiko HDB001?

The watch is powered by the Seiko Caliber 4R34 automatic movement with manual winding capability and a power reserve of approximately 41 hours.

What are the dimensions of the watch case?

The stainless steel case measures 39.4 mm in diameter, 13.6 mm in thickness, and 47.9 mm from lug to lug, with a 20 mm lug width.

What is the water resistance rating?

The watch features a water resistance rating of 10 bar.

Does this watch have a dual time function?

Yes, it includes a dedicated 24-hour hand for dual time display alongside a date calendar and hacking stop-second function.

What type of crystal is fitted on the watch?

It is equipped with a curved Hardlex crystal over the dial.

What type of case back does this model have?

The watch features a see-through screw case back allowing a view of the mechanical movement.

Seiko 5 Sports Men's Automatic Watch