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
Baby Miss You
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025
Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025

Big Bang Integrated Grey Ceramic, 42mm, Ref# 451.FX.6923.FX, Unworn 2025

$449.00

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

Unworn Big Bang Integrated Grey Ceramic 451.FX.6923.FX. 42 mm, Mat Grey Skeleton dial, Satin-finished and Polished Grey Ceramic case, Sapphire with Anti-reflective Treatment crystal, Satin-finished and Polished Grey Ceramic bezel, HUB1280 UNICO calibre, Manufacture Self-winding Chronograph Flyback Movement, 72 Hours power reserve, Satin-finished and Polished Grey Ceramic Bracelet with Titanium Deployant Buckle Clasp. Water resistant to 100 m.

TECHNICAL DETAILS

  • Model: Big Bang
  • Reference: 451.FX.6923.FX
  • Diameter: 42 mm
  • Case material: Satin-finished and Polished Grey Ceramic
  • Dial color: Mat Grey Skeleton
  • Bezel Type: Satin-finished and Polished Grey Ceramic
  • Bezel Color: Grey
  • Bezel Material: Ceramic
  • Crystal: Sapphire with Anti-reflective Treatment
  • Calibre: HUB1280 UNICO
  • Movement: Manufacture Self-winding Chronograph Flyback
  • Power Reserve: 72 Hours
  • Bracelet Material: Satin-finished and Polished Grey Ceramic Bracelet
  • Clasp: Titanium Deployant Buckle Clasp
  • Functions: Date
  • Water resistance: 100 m
HypoallergenicNickel-free and lead-free, gentle on sensitive skin
Style no.OP-120600
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

Keep the little moments

Join us for new keepsakes, milestone guides and 10% off your first order.

$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.