Hublot Big Bang Big Bang Alarm Repeater King Gold

Reference 403.OM.0123.RX

About this watch

The Hublot Big Bang Alarm Repeater King Gold is a limited-edition masterpiece that embodies luxury, precision, and innovation. Its striking design features a round case diameter of 45 mm, combining ceramic and rose gold for durability and luxury. The black color scheme provides a sleek contrast, making it versatile for any occasion. Mixed indexes and stick hands blend beautifully against the black dial, while the layout is thoughtfully designed with a GMT indicator at 11 o'clock, day/night indicator at 1 o'clock, and alarm ON/OFF indicator at 7 o'clock. The watch features a hand-wound movement, Hublot caliber HUB5003, boasting a 72-hour power reserve and a frequency of 28,800 vibrations per hour. Its acoustic alarm is activated by a steel hammer striking a gong, adding a touch of nostalgia to this timepiece. With a water resistance of up to 100 meters, the Big Bang Alarm Repeater King Gold can handle both splashes and dives. Whether you're a watch enthusiast or someone who appreciates the finer things in life, this timepiece is perfect for collectors looking for a limited-edition piece that stands out in any collection.

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Key Features

Hand-wound movement with 72-hour power reserve
Acoustic alarm activated by steel hammer striking a gong
Water resistance up to 100 meters
Round case diameter of 45 mm combining ceramic and rose gold
Mixed indexes and stick hands on black dial
GMT indicator at 11 o'clock, day/night indicator at 1 o'clock
Limited edition of only 250 units produced

Specifications

Brand

Hublot

Family

Big Bang

Model

Big Bang Alarm Repeater King Gold

Reference

403.OM.0123.RX

Movement

hub5003

Movement Features

Hours, Minutes, Small Seconds, Additional 24 Hour Hand (adjustable), Day / Night Indication
Date
Alarm

Case

45mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

100

Current Listings

Hublot Big Bang 301.SB.131.RX

Hublot - Big Bang 301.SB.131.RX · $6,000

This listing is for a Hublot Big Bang 301.SB.131.RX in excellent condition, including the box and papers.

Condition: Excellent
Box and papers included: true

Posted at

Mar 25, 2026, 12:42 PM

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Hublot Big Bang Unico 44mm Skeleton Dial Titanium 411.NX.1170.RX Box & Papers

Hublot - 411.NX.1170.RX · $8,895

The Hublot Big Bang Unico titanium features a sleek and stylish design, combining high-end materials and precision craftsmanship.

Condition: Excellent condition with little to no signs of wear
Case Size: 44mm diameter
Water Resistance: 100m (10ATM)
Movement Type: Mechanical (Automatic) Movement

Posted at

Mar 25, 2026, 9:30 AM

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2022 Hublot Big Bang Integral Indigo Blue 451.EX.5129.EX — Like New Condition, Box & Papers

Hublot - 451.EX.5129.EX · $14,000

The Hublot Big Bang Integral Indigo Blue features a fully integrated ceramic bracelet, skeletonized dial, and in-house automatic chronograph movement.

Condition: Like new condition
Box and papers included: true
Thickness: ~14.2mm
Diameter: 42mm

Posted at

Mar 24, 2026, 9:46 AM

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Hublot Big Bang Meca-10 Street Art 7/10

Hublot - Big Bang Meca-10 Street Art · $45,000

This super limited Hublot Big Bang Meca-10 Street Art features a 44mm case made from composite concrete with graffiti-inspired splatter by artist Saiff Vasarhelyi.

Case material: composite concrete (cement and epoxy resin)
Size: 44mm diameter
Artist: Saiff Vasarhelyi

Posted at

Mar 22, 2026, 12:21 AM

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Hublot Spirit of Big Bang Black Magic Ceramic 42mm 641.CI.0173.RX – 2019 – Full Set – $15,250

Hublot - 641.CI.0173.RX · $15,250

This 2019 Hublot Spirit of Big Bang Black Magic features a 42mm black ceramic case, skeletonized dial, and chronograph layout, powered by the HUB4700 automatic movement with approximately 50-hour power reserve.

Condition: 9.8/10 condition
Movement: HUB4700 automatic chronograph
Power reserve: 50-hour power reserve
Water resistance: 100 meters

Posted at

Mar 21, 2026, 11:15 AM

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