Just arrived in my collection, the GST chrono rattrapante in titanium, for me
a perfect sports watch.
With the chrono functions, the special complication, the rattrapante and in a
beautiful, timeless design. Add the case and most comfortable bracelet in
titanium and you have a perfect mix.
i love the black dial and yellow accents, it gives the watch a certain fun
factor.
I found in an old post some information on the movement ( and the one in the
GST Perpetual calandar )
The IWC reference 3715, GST Chrono-Rattrapante, uses the movement IWC caliber
79230. This is the same movement as in the reference 3713, Flieger
Doppelchronograph.
The IWC reference 3756, GST Perpetual Calendar, uses the movement IWC caliber
79261. This is the same movement as in the reference 3750, Da Vinci.
Both movements are based on the ETA Valjoux 7750. This basic movement is
modified by IWC. The rattrapante mechanism and the mechanism of the perpetual
calendar are constructed and made by IWC.
At least some technical details about these movements:
movement caliber: 79261 (perpetual calendar) / 79230 (rattrapante)
type of movement: automatic-winding-movement
movement diameter: 30,00 mm or 13 ΒΌ Paris Lines
movement height: caliber 79261 => 8,80 mm / caliber 79230 => 9,50 mm
power reserve of the full wounded movement: 44 hours
number of functional jewels: caliber 79261 => 39 artificial jewels /caliber
79230 => 29 artificial jewels
impulse angle: 52 degrees
oscillation frequency: 4 Hertz
halfbeats per hour: 28'800
decorations: cercular-graining and "Cotes Geneve"
surfaces: gold plated
hand setting with: crown
date correction with: crown
rotor-segment-material: heavy metall
type of rotor-bearing: ball-bearing
balance type: monometallic
balance-spring- type: flat balance-spring
adjustment system: "Triovis" fine adjustment
second-hand position: at 9 o'clock
second-hand stopp-function: yes
date-indication: caliber 79261 => at 3 o'clock / caliber 79230 => dial-opening
at 3 o'clock
weekday-indication: caliber 79261 => at 9 o'clock / caliber 79230 => dial-
opening at 3 o'clock
month-indication: caliber 79261 => at 6 o'clock
year-indication: caliber 79261 => dial-opening at 7:30 o'clock, 4 numbers
moonphase-indication: caliber 79261 => dial-opening at 12 o'clock
chronograph: yes
rattrapante mechanism: the caliber 79230
perpetual calendar: the caliber 79261
What do you think ? Am I right with my idea this is a perfect sports watch ?
