Bersigar Luxaura 1639 — Two-Tone Black Dial Edition
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The watch
Built around an obsidian black dial, the Bersigar Luxaura 1639 Two-Tone Black Dial pairs a 42mm case with a Seiko NH35A automatic movement. It brings a unidirectional rotating sapphire bezel, 100m water resistance and a sapphire crystal. On the ChronoSeasons dial it sits at Hour IV — Dive, part of the Expedition season — and suits travel days near the water.
BERSIGAR Luxaura 1639: Two-Tone Black Dial Edition
The BERSIGAR Luxaura 1639 Two-Tone Black combines maritime dive-watch utility with refined executive luxury accents. Defined by an obsidian black unidirectional rotating sapphire bezel, a deep black dial, and yellow gold color detailing across the case and bracelet, this 42mm timepiece delivers a bold, commanding wrist presence suited for formal occasions and active daily wear.
Powered by the Seiko Japanese TMI NH35A automatic movement, the caliber winds continuously using kinetic energy generated by natural wrist motion without requiring batteries. The dial features high-contrast luminescent geometric hour markers, yellow gold color Mercedes-style hands, and a date display at 3 o'clock magnified by an external cyclops lens for swift legibility. Machined from solid 316L polished and brushed stainless steel with yellow gold color accents, the watch is fitted with an ultra-hard sapphire crystal, a two-tone three-link Oyster-style bracelet, and a threaded screw-down crown providing 10 BAR (100M) pressure resistance.
Key Highlights
Seiko Japanese TMI NH35A Automatic Caliber: Workhorse Japanese self-winding mechanical movement offering dependable precision, hacking seconds, and battery-free reliability.
High-Contrast Black Dial: Deep black face accented by applied luminescent indices, classic Mercedes hands, and yellow gold color borders for swift legibility.
Sapphire Unidirectional Bezel: Premium black sapphire bezel insert with crisp timing demarcations and a yellow gold color coin-edge rim for tactile grip.
Two-Tone 316L Stainless Steel Bracelet: Solid three-link bracelet featuring brushed steel outer links and polished yellow gold color center links for balanced weight and durability.
Sapphire Crystal: Ultra-hard sapphire glass ensuring long-lasting optical clarity and surface protection.
10 BAR (100M) Water Resistance: Reinforced with a threaded screw-down crown, protective crown guards, and a sealed caseback built for daily resilience and pressurized water exposure.
Technical Specifications
| Specification | Detail |
| Brand | BERSIGAR |
| Model | Luxaura 1639 (Two-Tone Black Dial) |
| Movement | Seiko Japanese TMI NH35A Automatic (Self-Winding Mechanical) |
| Case Dimensions | 42mm Diameter × 13mm Thickness |
| Lug-to-Lug | 51mm |
| Lug Width | 20mm |
| Case Material | Solid 316L Polished & Brushed Stainless Steel (Yellow Gold Color Accents) |
| Strap Material | Solid 316L Stainless Steel (Two-Tone Yellow Gold Color) |
| Bracelet Style | Three-Link Oyster Style |
| Bezel Style | Unidirectional Rotating Sapphire Bezel (Black) |
| Dial Color | Obsidian Black (Geometric Luminescent Indices) |
| Glass | Sapphire Crystal |
| Crown | Threaded Screw-Down Crown (Yellow Gold Color) |
| Clasp | Comfort Folding Mechanism with Safety Deployment |
| Weight | 170g |
| Water Resistance | 10 BAR / 100 Meters |
Good to know
It runs on a Seiko NH35A 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 obsidian black dial with geometric luminescent indices, framed by a unidirectional rotating sapphire bezel, under an anti-reflective sapphire crystal.
Yes. Other versions we carry include the Bersigar Luxaura 1639 Silver Green, the Bersigar Luxaura 1639 Two-Tone Blue Dial, the Bersigar Luxaura 1639 Silver Black. Availability changes with stock, so the collection page always shows what is in stock today.
On the ChronoSeasons dial it sits at Hour IV — Dive, part of the Expedition season, and suits swimming, sailing, beach travel and everyday wear.
Yes. It ships brand-new and boxed from the brand's verified channel. Unworn watches can be returned within 30 days of delivery.
DHL/FedEx Express international · 3–7 days (EU/US), 10–14 days elsewhere . Orders ship by tracked courier worldwide and are processed within 1–3 business days. Unworn watches can be returned within 30 days of delivery — see our Shipping and Returns policies.
From the journal
Owners say
Took this out on Lake Anna all weekend and didn't baby it once. The 100m rating, sapphire crystal, and solid two-tone steel bracelet held up great around the dock, and the lume stayed readable well into the evening.
Most of my collection is aviation chronographs, but I wanted a classic black-and-gold automatic diver for weekend trips in Tennessee. The unidirectional sapphire bezel has positive, mechanical clicks for timing legs on the road, and the geometric markers are super clear.
Bought this for my husband's birthday. He is very particular about gold tones looking too loud, but the black dial and sapphire bezel balance the yellow gold accents nicely. He wears it almost every day.
After taking three links out for my wrist, the two-tone steel bracelet drapes really nicely. I also tested it on a black sailcloth strap with gold stitching for casual weekends and both setups look sharp.
Picked this up for my dad's 65th birthday in Pittsburgh. He has always liked classic two-tone black-and-gold divers, and he put this on at the restaurant before we even ordered dinner.
Been wearing this to the pharmacy and out to dinner. The black dial and yellow gold accents look much pricier than $375, and it sits comfortably on my 6.75" wrist.
Inspected the two-tone plating and bezel alignment out of the box. The yellow gold accents on the 316L bracelet are clean, the sapphire bezel clicks firmly with no slop, and the NH35A is keeping within +4 seconds per day.
Sharp black and gold look on my wrist. Fast shipping to St. Pete.
