Hublot Big Bang Big Bang Unico Sapphire Perpetual Calendar

Reference 406.JX.0120.RT

About this watch

The Hublot Big Bang Unico Sapphire Perpetual Calendar is a limited-edition marvel, featuring a stunning perpetual calendar mechanism integrated with a striking aesthetic. The watch showcases Hublot's commitment to quality and innovation, with a skeleton design allowing you to see the intricate workings of the movement. Crafted from titanium and resin, this timepiece boasts a robust yet lightweight feel, making it comfortable for everyday wear. With its 45 mm diameter and water-resistance up to 100 meters, this watch is perfect for those who value both presence and versatility. The Hublot caliber HUB1270 offers a plethora of complications, including a perpetual calendar feature displaying the date, day, leap year, and month through elegantly positioned hands. The moonphase complication at 3 o'clock shows the lunar cycle with two moons alternating beneath sapphire glass. This watch defies luxury stereotypes, blending sporty and elegant elements with incredible versatility.

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Key Features

45mm titanium case
Sapphire crystal
Perpetual calendar mechanism

Specifications

Brand

Hublot

Family

Big Bang

Model

Big Bang Unico Sapphire Perpetual Calendar

Reference

406.JX.0120.RT

Movement

hub1270

Movement Features

Hours, Minutes
Date, Day, Leap Year, Month, Perpetual Calendar
Chronograph, Flyback, Column wheel
Moonphase

Case

45mm

Dial Color

Skeleton

Crystal

Sapphire

Water Resistance

100

Current Listings

Hublot Big Bang Meca-10 Ceramic Skeleton “Black Magic” 45mm w/ Full Set. Ref: 414.CI.1123.RX $12,100

Hublot - 414.CI.1123.RX · $12,100

This is a Hublot Big Bang Meca-10 Ceramic Skeleton watch in the 'Black Magic' colorway, featuring a 45mm case size.

Case size: 45mm diameter
Gender: men's

Posted at

Feb 19, 2026, 4:04 PM

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Hublot Spirit of Big Bang Japan Limited – Ref. 601.NE.0172.LR.JPN17 – $12,900

Hublot - 601.NE.0172.LR.JPN17 · $12,900

a bold and highly distinctive Hublot Spirit of Big Bang Japan Limited Edition, a Japan-exclusive release with a black ceramic tonneau case.

Condition: excellent condition
Movement: HUB4700 Automatic Skeleton Chronograph (Column Wheel | ~50hr Power Reserve)
Case: Black Ceramic Tonneau (45mm x 51mm)
Dial: Skeletonized with applied indices, chronograph subdials & date

Posted at

Feb 17, 2026, 2:23 PM

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Hublot Big Bang Aero Bang Carbon – Ref 311.QX.1124.RX – Skeleton Dial, Carbon Case, Full Set + White Rubber Strap

Hublot - 311.QX.1124.RX · $9,450

The Hublot Big Bang Aero Bang Carbon features a skeletonized dial and a carbon fiber case, revealing the HUB4214 automatic chronograph movement.

Condition: Excellent condition with minimal signs of wear
Case Diameter: 44mm
Case Material: Carbon Fiber
Movement: HUB4214 Automatic Chronograph

Posted at

Feb 13, 2026, 6:09 PM

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Hublot Big Bang Earl Grey Chronograph 41mm Tantalum Dial 342.ST.5010.ST.1104

Hublot - 342.ST.5010.ST.1104 · $7,650

This listing is for a Hublot Big Bang Earl Grey Chronograph with a 41mm tantalum dial.

Condition: Very good, minimal handling marks
Case material: Tantalum
Diameter: 41mm

Posted at

Feb 13, 2026, 10:06 AM

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Hublot Big Bang 44mm 301.SM.1770.RX 44mm Carbon Dial W/PAPERS

Hublot - 301.SM.1770.RX · $7,299

This Hublot Big Bang timepiece features a carbon dial and black ceramic bezel, measuring 44mm in diameter. It comes with an original warranty card and usb reader.

Condition: pre-owned with typical light cosmetic wear
Case diameter: 44mm
Movement type: automatic
Water resistance: 100m depth rating

Posted at

Feb 11, 2026, 9:26 PM

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Hublot Big Bang 44mm 301.SM.1770.RX 44mm Carbon Dial W/PAPERS

Hublot - 301.SM.1770.RX · $7,299

This Hublot Big Bang features a 44mm carbon dial and black ceramic bezel, powered by an automatic movement. It has a water resistance of 100m and a power reserve of 42 hours.

Condition: nice pre-owned condition with typical light cosmetic wear on the case
Diameter: 44mm
Case material: Stainless Steel
Band material: Black Lined Rubber

Posted at

Feb 11, 2026, 9:24 PM

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