Seiko Prospex Speedtimer Automatic SPB515J1 - NEW

The SPB515J1 belongs to the new generation of Seiko Prospex Speedtimer automatic watches and combines sporty functionality with a clear historical reference. Inspired by the legendary Seiko Speedtimer of 1972 – the iconic “Panda,” as collectors call it – this model translates the characteristic case shape and technical DNA into a modern three-hand automatic watch.

The key feature is the internal, rotating countdown ring , operated via the crown. It allows for flexible timing, for example for race starts, training intervals, or pit stops. A LumiBrite -coated ▼ marker ensures that the set reference time remains clearly legible even in poor lighting conditions.

The deep black dial underscores the watch's functional, instrumental character. Luminous indices and hands ensure excellent legibility and lend the SPB515J1 a consistently sporty appearance. The watch is powered by the modern 6R55 automatic movement with a power reserve of up to 72 hours – three full days of mechanical autonomy. Thus, the Speedtimer Automatic combines everyday practicality, robust technology, and genuine Seiko tradition in a balanced, versatile format.

Technical Highlights

– Caliber 6R55, automatic with manual winding
– Power reserve: approx. 72 hours
– Precision: +25 / −15 seconds per day
– Countdown function via internal rotating ring
– Waterproof up to 20 bar
– Sapphire crystal with anti-reflective treatment
– Screwed-on case base

Dial & Hands

– Dial color: Black
– Indices: coated with LumiBrite
– Hands: with LumiBrite for optimal readability
– Marking: luminescent ▼ marker on the countdown ring

Case & Glass

– Housing: stainless steel
– Glass: Sapphire crystal, curved, anti-reflective
– Case base: screwed on
– Diameter: 39.5 mm
– Height: 11.95 mm
– Impact width: 20 mm

Bracelet & clasp

– Stainless steel bracelet
– Original strap length: approx. 20.5 cm
– Safety folding clasp

materials

– Housing: stainless steel
– Bracelet: stainless steel
– Glass: Sapphire

Condition

New, in original packaging

User manual (download)
You can find the official Seiko user manual here:
Seiko Customer Service – Instructions

Shipment

– In stock, available for immediate delivery. Free shipping within Germany.