SEIBAY CHRONO BLACK
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1 YEAR WARRANTY INCLUDED
Inspired by the iconic Black Bay chronograph aesthetic, this hand-built Seiko Mod Black Bay Chrono Black pairs the Seiko VK64 meca-quartz movement with premium materials for a clean, versatile look that works from daily wear to special occasions. The hybrid architecture delivers quartz accuracy with a mechanical chronograph module for a smooth sweep and crisp, snap-back reset.
Specifications
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Diameter: 40 mm (excluding crown)
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Thickness: 12 mm
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Crystal: Sapphire, anti-scratch with anti-reflective treatment
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Bezel: Ceramic (Black)
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Dial: Black with black subdials
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Hands: Silver
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Case: 316L stainless steel
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Bracelet: 316L stainless steel with security clasp
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Lug width: 20 mm
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Lug-to-lug: 47.9 mm
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Crown style: Screw-down
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Case back: Closed steel
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Movement: Seiko VK64 Chronograph (Meca-Quartz)
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Water resistance: 3 ATM (splash-resistant; not for swimming)
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Wrist size: 14.5 cm – 22 cm (adjustable)
WHAT INCLUDED?
- Premium watch box
- Watch tool set for adjustments
- 1 year limited warranty
- Lifetime aftercare support
- Exclusive offers and first to know about new releases
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SEIKOBLACKBAY
The SEIKOBLACKBAY Chrono channels its heritage into a sport-chic chronograph with bold, contrasting sub-counters and a high-performance meca-quartz caliber that delivers a smooth sweep and crisp snap-back reset. Born from motor racing, it unites purposeful design with precise timing—a track-ready instrument evolved into a modern icon, engineered for speed yet refined for everyday wear.
BLACK BAY CERAMIC
As a statement piece, the Black Bay Ceramic reflects AURO’s command of strict chronometric and magnetic-resistance criteria. Certified through METAS testing, it stands as a pure expression of contemporary, high-technology style.
MAKING THE CASE
Every Black Bay begins life as a solid 316L stainless-steel blank, slightly thicker than the finished case. Using subtractive manufacturing, the blank is milled down with minimal waste: the interior is opened first, followed by the outer profile. This early case is then precisely machined into the Black Bay’s signature silhouette, heat-treated and strengthened, and finally hand-finished in a mix of brushed, polished, and satin textures to create depth and visual interest.
Working with stainless steel is complex, but in the end, it’s what lends a unique character to the Black Bay.
HYBRID MECA-QUARTZ MOVEMENT
"Meca-quartz" hybrid watch movement that combines a quartz timekeeping base with a mechanical-style chronograph module, offering the best of both worlds: high accuracy from the quartz components and the satisfying tactile feel of a mechanical watch, including a smooth sweeping chronograph hand and instant reset. This hybrid design results in a durable, reliable, and affordable movement that provides mechanical-like operation with the superior timekeeping precision of quartz.
Need help?
Frequently Asked Questions
Seiko VK64 mecha-quartz chronograph—quartz timekeeping for accuracy + a mechanical chrono module for a smooth sweep and crisp snap-back reset.
Yes. VK64 is a bi-compax layout: a 60-minute chronograph counter (9 o’clock) and a 24-hour indicator (3 o’clock), plus a central sweeping chronograph seconds. VK64 models typically do not show running (time) seconds and do not have a date.
Most BlackBay builds are around 40 mm diameter, ~12 mm thick, 47–48 mm lug-to-lug, with a 20 mm lug width (see each product page for exact specs).
Accuracy is typically ±20 sec/month. Battery life is about 2–3 years under normal use (heavy chrono use reduces it slightly).
Yes—start/stop/reset cycles, hand centering, alignment, gasket checks, and final QC are completed on every build.
Rinse case/bracelet with fresh water after salt/sweat, dry with a microfiber, avoid harsh chemicals, and keep away from strong magnets.
Top pusher (2 o’clock) starts/stops; bottom pusher (4 o’clock) resets. On VK64, the chrono seconds snaps back cleanly to 12.
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