Bersigar Luxaura 1645 — Two-Tone Black Dial Edition
The watch
Built around a sunburst black dial, the Bersigar Luxaura 1645 Two-Tone Black Dial pairs a 42mm case with a Seiko NH35 automatic movement. It brings 100m water resistance and a sapphire crystal. On the ChronoSeasons dial it sits at Hour I — Minimalist Dress, part of the Boardroom season — and suits days that start in a meeting room and end at dinner.
BERSIGAR Luxaura 1645: Two-Tone Black Dial Edition
The BERSIGAR Luxaura 1645 Two-Tone Black Dial delivers striking contrast and classic horological prestige. Defined by a yellow gold color fluted bezel, a sunburst black dial, and faceted yellow gold color baton indices, this 42mm timepiece provides a bold, balanced aesthetic suited for formal occasions and everyday wear.
Powered by the Seiko Japanese TMI NH35 automatic movement (24 jewels), the caliber winds via natural wrist motion with no batteries required. The dial features polished yellow gold color baton hands, luminescent hour markers, and a date display at 3 o'clock magnified by an external cyclops lens. Built from solid 316L polished and brushed stainless steel with yellow gold color center links, it is paired with a five-link Jubilee bracelet, an anti-reflective sapphire crystal, and a threaded screw-down crown rated for 10 BAR (100M) pressure resistance.
Key Highlights
Seiko Japanese TMI NH35 Automatic Caliber: 24-jewel Japanese mechanical movement offering dependable precision, hacking seconds, and battery-free reliability.
Sunburst Black Dial: High-contrast black face accented by applied yellow gold color baton hour markers and fine minute demarcations.
Fluted Architectural Bezel: Precision-cut fluted bezel in yellow gold color designed to reflect light from every angle.
Two-Tone 316L Jubilee Bracelet: Articulated five-link stainless steel bracelet with polished yellow gold color center links for comfort and balance.
Anti-Reflective Sapphire Crystal: Scratch-resistant sapphire lens treated with specialized anti-reflective and anti-fingerprint coatings.
10 BAR (100M) Water Resistance: Reinforced with a threaded screw-down crown and sealed caseback, built to withstand pressurized exposure, heavy rain, and daily wear.
Technical Specifications
| Specification | Detail |
| Brand | BERSIGAR |
| Model | Luxaura 1645 (Two-Tone Black Dial) |
| Movement | Seiko Japanese TMI NH35 Automatic (24 Jewels, Self-Winding) |
| Case Dimensions | 42mm Diameter × 12mm Thickness |
| Lug-to-Lug | 49.5mm |
| Lug Width | 20mm |
| Band Length | 220mm |
| Case & Strap Material | Solid 316L Stainless Steel with Yellow Gold Color Accent |
| Bracelet Style | Five-Link Jubilee Style (Two-Tone) |
| Bezel Style | Fluted Yellow Gold Color Polished Bezel |
| Dial Color | Sunburst Black (Yellow Gold Color Baton Indices) |
| Glass | Sapphire Crystal |
| Crown | Threaded Screw-Down Crown (Yellow Gold Color) |
| Clasp | Comfort Folding Mechanism with Safety Deployment |
| Weight | 145g |
| Water Resistance | 10 BAR / 100 Meters |
Good to know
It runs on a Seiko NH35 automatic movement. It winds itself from the motion of your wrist, so there is no battery to replace.
Yes for swimming. It is rated to 100m (10 ATM), which covers rain, hand-washing and pool or sea swimming. It is not intended for scuba diving, and avoid hot showers and saunas.
The case measures 42mm — a mid-to-large size that suits average and larger wrists (roughly 16.5 cm / 6.5 in and up). Our watch size guide (/pages/watch-size-guide) explains how to measure your wrist.
It has a sunburst black dial with yellow gold color baton indices, framed by a fluted yellow gold color polished bezel, under an anti-reflective sapphire crystal.
Yes. Other versions we carry include the Bersigar Luxaura 1645 Black, the Bersigar Luxaura 1645 Blue, the Bersigar Luxaura 1645 Two-Tone Yellow Gold. Availability changes with stock, so the collection page always shows what is in stock today.
On the ChronoSeasons dial it sits at Hour I — Minimalist Dress, part of the Boardroom season, and suits client meetings, weddings and evenings that call for a jacket.
Yes. It ships brand-new and boxed from the brand's verified channel. Unworn watches can be returned within 30 days of delivery.
From the journal
Owners say
I was nervous that a two-tone gold and steel watch at this price might look brassy in person. Once I opened it, the yellow gold tone against the black sunburst dial and solid 316L steel links looked rich and understated.
I have half a dozen Seiko and microbrand automatics, and this 42mm Luxaura 1645 is a solid addition. The Seiko NH35 hacks and hand-winds smoothly, keeping +4 seconds a day on my wrist, and the AR sapphire crystal keeps the black sunburst dial crisp. My only minor note is the date window is a little small without my reading glasses.
Took two links out of the two-tone steel bracelet to fit my wrist and the drape is super comfortable. The outer presentation box was fairly basic, though the watch itself is where the money went.
Thanks for the review, Albert! Glad the two-tone bracelet sized easily and feels comfortable on your wrist.
Bought this for my brother's retirement dinner. He loved the black sunburst dial and gold fluted bezel right away. The outer presentation box was fairly basic, though the watch is clearly where the money went.
After decades of wearing military pilot watches and GMTs, I wanted a traditional black-and-gold dress watch for family dinners. The Seiko NH35 sweep is smooth and the gold fluted bezel catches light cleanly.
Checked the specs over in Troy: solid 316L links with clean yellow gold plating, flat AR sapphire, and a Seiko NH35 running +5 sec/day. The lume on the hands and indices is decent for a few hours, though not an all-night torch.
Appreciate the detailed feedback, Blake! On dress-style baton indices the luminous fill is kept slim to preserve the dial profile, so we're glad the NH35 accuracy and sapphire crystal are serving you well.
I normally wear 42mm racing chronographs on the weekend, so this two-tone black-and-gold automatic gives me the same 42mm wrist presence in a much dressier three-hander package.
Wears really well with a charcoal suit for vendor meetings. The black sunburst dial with yellow gold baton indices and fluted bezel has a timeless executive look on my wrist.
