Speedmaster Chronoscope Co‑Axial Master Chronometer Chronograph 43 mm

The Chronoscope collection has taken the legendary Speedmaster design and combined it with inspiration from OMEGA’s chronograph wristwatches from the 1940s.

This 43 mm model is crafted in stainless steel with a blue dial with silvery subdials. Along with a blue anodized aluminium bezel ring with its tachymeter scale, the leaf-shaped hands and Arabic numerals are rhodium-plated, with a unique “spiral” track pattern running beneath the numbers.

Most notably, the dial is printed with three distinctive timing scales in a 1940’s “snail” design, including a tachymeter scale, a pulsometer scale and a telemeter scale.

Presented on a stainless steel bracelet, the watch features a silvery small-seconds counter at 9H, and a silvery 60-minute and 12-hour recorder at 3H. Inside, the timepiece is driven by the OMEGA Co-Axial Master Chronometer Calibre 9908.

Features
Anti-magnetic
Chronograph
Chronometer
Master Chronometer Certified
Pulsometer
Small seconds
Tachymeter
Telemeter
Time zone function
Transparent caseback

Case
Between lugs: 21 mm
Lug‑to‑lug: 48.6 mm
Case diameter: 43 mm
Case: Steel
Water resistance: 5 bar (50 metres / 167 feet)
Total product weight (approx.): 145 g

Dial and Crystal
Dial colour: Blue
Crystal: Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides

Bracelet
Material: Steel
Type of Clasp: Foldover clasp with comfort setting

Reference
329.30.43.51.03.001