5990/1A-011

Description

WATCH

Self-winding mechanical movement. Caliber CH 28‑520 C FUS. Flyback chronograph. Central chronograph hand. 60-minute counter. Two time zones: local and home time indication. Day/night indication for local time and home time in apertures. Date coupled with local time by hand.

DIAL

Sunburst blue with black-gradient rim, horizontally embossed, gold applied hour markers with luminescent coating.

CASE

Steel. Screw-down crown. Sapphire crystal case back. Water-resistant to 120 m. Case diameter (10 - 4 o’clock): 40.5 mm. Height: 12.53 mm.

BRACELET / STRAP

Steel. Patented fold-over clasp with lockable adjustment system.

CH 28-520 C FUS
SELF-WINDING

Flyback chronograph. Central chronograph hand. 60-minute counter. Two time zones: local and home time indication. Day/night indication for local time and home time in apertures. Date coupled with local time by hand. Diameter: 31 mm. Height: 6.95 mm. Number of parts: 370. Jewels: 34. Power reserve: min. 45 hours - max. 55 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax®. Frequency: 28,800 semi-oscillations per hour (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.