Breitling Breitling - Y2431033.Q621.152A Chronoliner Stainless Steel / Bronze / Bracelet

Chronoliner Stainless Steel / Bronze / Bracelet

REF. Y2431033.Q621.152A

5/10

Scarce

Case

MaterialCeramic, Stainless Steel

Diameter46 mm

Lug width22 mm

ShapeRound

CrystalSapphire

Case backClosed

Water resistance100 m

Dial

ColourBrown

IndexesStick / Dot Hands: Stick

HandsStick

Movement

CaliberCaliber 24

Typeautomatic

Reserve42 h

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In Context

At 46 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 42 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

Y2431033.Q621.152A stands on its own in this catalogue — no other reference here shares its base number. It pairs a brown dial with a ceramic, stainless steel case. Introduced in 2015.

Inside: Caliber Caliber 24

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Breitling's execution of the ETA/Valjoux 7754, the variant of the 7750 that adds an independently adjustable 24-hour hand for a second time zone. Actuation is cam-switched rather than column-wheel, the trade the 7750 family makes in favour of robustness and simpler servicing. It sits behind the travel-oriented models in the range, the Navitimer World and the Chronoliner, where the GMT hand rather than the chronograph is the point.

54 other watches in the library run the Breitling Caliber 24.