Hypoallergenic · Nickel-free · Sized for young wearers Flat-rate $15 U.S. shipping · 7–12 business days Every piece arrives in a keepsake gift box — complimentary
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Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers
Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers

Unworn, Seamaster Diver 300m, 18k Bronze Gold, 42mm, Ref# 210.90.42.20.01.003, box and papers

$369.00

Hypoallergenic Nickel-free Keepsake boxed
Flat-rate $15 U.S. shipping Ships in a velvet keepsake box Free returns within 30 days of delivery Arrives Sep 14 – Sep 23

Introducing a stunning, unworn watch Seamaster Diver 300M, embodied in the model Ref# 210.90.42.20.01.003 continues its storied journey beneath the waves—this time with a sleek, contemporary twist on its iconic design. Since its debut in 1993, the Seamaster Diver 300M has captured the spirit of ocean exploration, earning a devoted global following. This 42 mm model is a striking fusion of 18K Bronze Gold, blending strength with distinctive elegance. Its includes a burgundy oxalic anodized aluminium bezel showcases a diving scale illuminated by vintage Super-LumiNova, giving the watch a timeless, heritage-inspired glow. Sandblasted black aluminium is used to create a rich, matte texture dial that exudes understated sophistication while enhancing the watch’s legibility. This refined finish not only adds depth to the design but also reinforces the timepiece’s modern, tactical aesthetic, adorned with PVD 18K Bronze Gold hands and blackened indexes, all generously filled with vintage Super-LumiNova for optimal visibility. Light brown lettering, including the logo, adds a subtle yet sophisticated contrast. Crafted for the depths and designed for clarity, this timepiece is equipped with a domed, scratch-resistant sapphire crystal, offering exceptional durability while maintaining a pristine view of the dial. The crystal also features an anti-reflective coating on the inner surface, minimizing glare and enhancing legibility in all lighting conditions. A helium release valve is seamlessly integrated into the case, ensuring the watch remains uncompromised during professional saturation dives. This essential feature protects the integrity of the timepiece under extreme pressure, making it a true companion for deep-sea explorers. Beneath the surface, the watch is powered by the Co-Axial Master Chronometer Calibre 8806 with beating at 25,200 vph, with 35 jewels and a 55-hour power reserve, visible through the sapphire-crystal caseback. Completing the look is an 18k Bronze Gold Mesh bracelet with secure 18k Bronze Gold Foldover clasp, merging classic dive-watch heritage with a modern, ergonomic feel. Built for precision, designed for adventure and comfortable for everyday wear, the Seamaster Diver 300M, water resistant to 300 meters, remains a legend in every sense.

  • Model: Seamaster Diver 300m
  • Reference: 210.90.42.20.01.003
  • Diameter: 42mm
  • Case material: 18k Bronze Gold
  • Dial color: Black sandblasted aluminum
  • Bezel Type: Unidirectional Rotating
  • Bezel Color: Burgundy
  • Bezel Material: Oxalic anodized aluminium
  • Crystal: Scratch Resistant Sapphire
  • Movement: Self-winding
  • Bracelet Type: Mesh bracelet
  • Bracelet Material: 18k Bronze Gold
  • Clasp: 18k Bronze Gold Foldover clasp
  • Functions: Seconds, Minutes, Hours, Helium escape valve
  • Water resistance: Up to a 300m/990ft (30ATM)
  • Warranty: International 5-year Warranty

The watch is unworn and comes complete with full set of original accessories, such as watch box, warranty card dated recently, booklets and manuals.

HypoallergenicNickel-free and lead-free, gentle on sensitive skin
Style no.OP-124489
Baby (0–24 mo)Bracelets 4.0–4.7 in · Necklaces 10–12 in · Earrings 8–11 mm hoops
Child (2–12 yr)Bracelets 4.7–6.0 in · Necklaces 12–14 in · Rings sizes 2–4
TeenBracelets 6.0–6.5 in · Necklaces 14–16 in · Rings sizes 4–7

Between sizes? We recommend sizing up — a little room to grow keeps a keepsake wearable longer.

U.S. shipping is a flat $15 per order. Every order ships from our fulfillment warehouse in Hong Kong — prepared within 1–3 business days, then delivered in 7–12 business days with tracking — estimated delivery Sep 14 – Sep 23.

Unused and unworn items may be returned within 30 days of delivery. We provide a prepaid U.S. return label and charge no restocking fee. See our Returns & Refunds policy for the earrings hygiene exception and instructions.

keep the set together

Completes the keepsake

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$15 flat-rate U.S. shipping — tracked door to door, 7–12 business days. Free 30-day U.S. returns — prepaid label and no restocking fee. Hypoallergenic promise — nickel-free 14K gold & sterling silver.