HERITAGE / MECHANICAL CHRONOGRAPH ST1902 / BLUE

Technical Specifications:
Case Diameter: 40 mm
Thickness: 12,5 mm
Lug: 20 mm
Glass: Domed Hesalite
Water Resistance: 3 ATM (=30 m)

Functions:
Central hours
Central minutes
Central 60 seconds chronograph
Small seconds at 9
30 minutes chronograph subdial at 3
Chronograph with tachymetric scale (tachymeter)
First minute scale
Telemetric scale (telemeter)

Movement Specifications:
Seagull cal. ST1902 (based on cal. Venus 175)
Mechanical chronograph, manual-wind
Ruby jewels: 22
Shock system: Incabloc
Chronograph System: column wheel and vertical clutch
Frequency: 3 Hz (21.600 vph)
Daily rate: from ±15 to ±20 s/day
Power reserve: 42~51 h
Hand-windable?: yes
Hacking seconds?: no
Quickset date?: yes
Country of manufacture: Switzerland