Breitling Breitling - A323983B1C1 Chronomat 40 GMT Turkey

Chronomat 40 GMT Turkey

REF. A323983B1C1

Case

MaterialStainless Steel

Diameter40 mm

Lug width20 mm

ShapeRound

CrystalSapphire

Case backClosed

Water resistance100 m

Dial

ColourGreen

FinishSunburst

IndexesEastern Arabic Numerals Hands: Stick

HandsStick

Movement

CaliberCaliber 32

Typeautomatic

Reserve42 h

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In Context

At 40 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 11.7 mm thick it is about average for a modern wristwatch. 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.

A323983B1C1 stands on its own in this catalogue — no other reference here shares its base number. It pairs a green sunburst dial with a stainless steel case. It was a limited edition. Introduced in 2025. Beyond the time it carries a gmt.

Inside: Caliber Caliber 32

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The Breitling caliber 32 is essentially a COSC grade ETA caliber 2892-2 with a customized Breitling rotor. The 24 hour GMT hand sets independently. Unscrew crown and pull to position I, turning forward/clockwise will adjust the GMT hand by one hour increments. Turning the crown backwards/counter-clockwise will adjust the date. This is very convenient because you can adjust the GMT hand without hacking (stopping) the movement. For GMTs that require hacking the movement to adjust the GMT hand, it also requires readjusting the time.

116 other watches in the library run the Breitling Caliber 32.