At 44mm in a two-tone steel construction, this replica chronomat ub0136251l 44mm occupies the larger end of the modern Chronomat range. The UB prefix in the reference number signals a combination of stainless steel with gold-tone accents, giving the watch a mixed-metal character that standard steel variants lack. The Chronomat has served as the brand’s signature chronograph since 1984, and the 44mm sizing keeps it firmly in the oversized-tool-watch category rather than the more restrained 42mm territory. A Rouleaux-style bracelet with alternating steel and gold-tone links runs from lug to clasp.

Technical Overview

• Case diameter: 44mm
• Case material: stainless steel with gold-tone elements
• Bezel: bi-directional rider tabs (Chronomat signature)
• Crystal: sapphire with anti-reflective coating
• Bracelet: Rouleaux-style with steel and gold-tone links
• Movement: automatic chronograph
• Functions: hours, minutes, seconds, chronograph, date

The rider-tab bezel is the fastest way to identify a Chronomat from across a room. Those four raised tabs at the cardinal points were introduced for grip during gloved operation and remain a defining design signature decades later. The tabs also act as crown guards, adding a layer of protection to the case side.

Inside the Movement

The automatic chronograph inside handles elapsed-time measurement through sub-dials at three, six, and nine. The date window sits between four and five o’clock, recessed slightly into the dial surface. The tri-compax layout fills the dial with information, giving the UB0136251L a busier face than two-register alternatives in the same collection. To see how the same 44mm case plays out with a different dial, the bicoloured UB0136251B variant offers another tone combination on the same platform. Browse the full Chronomat range to compare how different finishes alter the personality of a shared 44mm architecture.

What Sets It Apart

Two-tone chronographs in this size bracket tend to lean heavily into a luxury-sport aesthetic, and the Chronomat UB0136251L is no exception. The gold-tone accents on the bracelet links and crown create warmth against the steel, while the 44mm case diameter keeps it grounded in tool-watch territory. On the wrist, the mixed metals catch light at different rates, giving the bracelet a visual depth that monochrome steel cannot achieve. This replica chronomat ub0136251l 44mm bridges the gap between dressy two-tone and functional instrument in a way smaller references do not.