Omega Speedmaster Chronoscope 329.30.43.51.02.001 43 mm Steel Silver Dial Watch for Men

Three timing scales printed in a 1940s-style snail pattern – tachymeter, pulsometer and telemeter – define the silvery dial of this 43 mm Speedmaster Chronoscope in stainless steel. Blued leaf-shaped hands and blued Arabic numerals sit over a spiral track, and a blue anodised aluminium bezel ring carries a further tachymeter scale.

Small seconds appear at 9 o'clock, opposite a 60-minute and 12-hour counter at 3 o'clock. The manual-winding Calibre 9908, with column wheel and Co-Axial escapement, is a Master Chronometer certified by METAS, resistant to 15,000 gauss and running for 60 hours on two barrels in series. It is fitted to a stainless steel bracelet with comfort-setting foldover clasp and is water resistant to 50 metres.

Technical specifications

• Brand: OMEGA
• Collection: Speedmaster – Two counters – Chronoscope
• Model: Speedmaster Chronoscope Co-Axial Master Chronometer Chronograph
• Reference: 329.30.43.51.02.001
• Case: Steel, 43 mm diameter
• Lug-to-lug: 48.60 mm
• Lug width: 21 mm
• Bezel: Blue anodised aluminium bezel ring with tachymeter scale
• Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment on both sides
• Water resistance: 5 bar (50 metres / 165 feet)
• Dial: Silver
• Hands and indexes: Blued leaf-shaped hands and Arabic numerals
• Functions: Hours, Minutes, Small seconds, Chronograph, Tachymeter scale
• Movement: OMEGA 9908, manual-winding with Co-Axial escapement
• Certification: Co-Axial Master Chronometer, certified by METAS (magnetic resistance to 15,000 gauss)
• Power reserve: 60 hours
• Frequency: 4 Hz
• Bracelet: Steel
• Clasp: Foldover clasp with comfort setting
• Weight (approx.): 144 g
• Warranty: 5-year OMEGA international warranty
• Made in: Switzerland
• Manufacturer: OMEGA SA, Biel/Bienne, Switzerland