Seiko Prospex Speedtimer HBC004J1 Men's Watch

Seiko men's watch from the Prospex collection. The watch has a self-winding mechanical movement with date display. The case is stainless steel, 39.5 mm in diameter. The strap is black leather. Sapphire crystal. The dial is gray. Water resistance is 20 bar / 200 meters. Reference: HBC004J1

Seiko HBC004J1 : A sporty automatic timepiece inspired by classic motorsport instruments, featuring a grey dial, compact 39.5mm stainless steel case, black leather strap and durable sapphire crystal.

The rotating inner bezel with countdown function allows you to conveniently measure different time intervals, while water resistance up to 200 metres and LumiBrite details enhance its reliability and versatility, for a Prospex designed for adventure and everyday life.

Item shipped with Seiko case and warranty

What does self-winding mechanical movement mean?

Automatic watches , often referred to as self-winding watches, are mechanical watches that harness the kinetic energy generated by the natural movements of the wrist. This allows the internal spring to wind itself, without the need for external intervention.

The power reserve typically varies between 36 and 80 hours. If the watch is not worn for a few days, it may stop working: simply put it back on your wrist and it will start working again after a few moments.

One of the main advantages of this technology is the absence of batteries, which are instead used in quartz movements. This makes the automatic watch a more eco-friendly choice and, with proper maintenance, capable of lasting for decades .