Technical details
Movement
- Calibre SW510
- Self-winding mechanical movement
- Chronograph function integrated into the movement
- 27 jewels
- 28.800 vibrations per hour; 4 Hz.
- Stone lever escapement
- Stop-second
- Shock resistant as per DIN 8308
- Anti-magnetic as per DIN 8309/ISO 764
- Movement diameter 13 1/4"" (30,4 mm)
- Glucydur-Chronometer Balance Wheel
- Incabloc shock protection
- Power reserve approx. 60 hours
- Movement decorated, weight segment with engraved Guinand logo
- Unidirectional self-winding mechanism with ball bearing, weight segment made of heavy metal
Functions
- Hours, minutes, subsidiary seconds
- Chronograph with 30 min counter and central second hand
- Date display
Case
- Stainless steel - polished, satinized or bead-blasted
- Sapphire crystal glass, domed, anti-reflective on the interior
- Screwed back with sapphire crystal glass
- Screwed crown with 3-way sealing system and flank protection
- Hard-coated stainless steel pilot's bezel, rotatable in minute (half hour with Klassik GMT) increments in both directions
- Sealing system FKM-R for pushers, crown and case back
- Protected pushers
- Pressure resistant up to 20 bar
Dimensions and Weight
- Case diameter: approx. 40.7 mm / 1.6 inch
- Case thickness: 15.7 mm / 0.62 inch
- Band lug width: 20 mm
- Lug-to-lug distance: 48.7 mm / 1.92 inch
- Distance between the spring bars: 45.7 mm / 1.8 inch
- Weight without strap: ca. 92 grams