SFL-Chronograph

Guinand is a pioneer in Chronographs from the very start and has been active in aviation for more than 100 years with time-measuring instruments.

The watch

For our new SFL chronograph, we have therefore been able to draw on our wealth of experience in stopwatches. Just as 70 years ago, when the 60-minute stopper was produced, today's functionality is still at the forefront and determines the construction and design of the watch. The SFL-Bezel (Steel-Flight-Lunette) takes up the construction of the then 12-turnturning torque and transfers the basic idea to the timepiece which is no longer worn on the thigh but instead on the wrist.

 

360 View


The housing

It was our 40-series model that was the natural inspiration in the development of the SFL chronograph, and from this model it adopted the basic housing. Carrying crown protection, protected pushers and the solid base (base with sapphire glass optional) and the new SFL bezel, the watch is optimally designed for the most adversed harsh environmental condition.

The new SFL bezel has been constructed from stainless steel and has laser engraved numbers and minutes. The bezel is thus not printed or equipped with a printed inlay, whose printing can be scratched, but is continuously made of stainless steel. The SFL bezel can be steplessly turned in both directions, allowing short-term stops up to 60 minutes without starting the chronograph. The SFL bezel is 100% compatible with our standard light alloy pilot bezel.

The strap

Outback Lederband mit dunkelgrauer Kontrastnaht

For the SFL chronograph, we have developed a new leather strap. Our Outback-strap is made of leather, which is almost twice as strong, 50% better tear-resistant than cowhide leather, and only half as much water absorbing. Of course, all our leather and rubber tapes can also be combined with the watch.

Test-bench for straps

For the SFL-Chrono, we have developed a test bench where we can simulate a long-term load on the entire watch watchstrap system consisting of watch case, spring bar, leather strap and clasp. In addition to the short-term tear test that takes seconds or maximum some minutes, we test over hours and days. This is the only way to believe that reliable results can be demonstrated regarding the mechanical stability of a strap construction.

The dial

For the SFL-Chronograph, we have for the first time developed a dial, in which the best-readable DIN font is used consistently. The stop subdials are clearly delineated from the rest of the dial, none of the hour digits of the dial are cut and the numbers are taken back. Large, slightly wedge-shaped hour indices with white luminescent hour indices and full hour and minute markers ensure the best readability and the distinctive instrument character of this pilot chronograph.

Watch configurator

SFL-Chronograph

(S)tahl-(F)lieger-(L)ünette

Functionality and robustness of our SFL chronograph determines the construction and design of the watch.

Available
from July 2017

Bezel*
Clasp
Additional Options

Technical details

Movement

  • Calibre ETA/Valjoux 7750
  • Self-winding mechanical movement
  • Chronograph function integrated into the movement
  • 25 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)
  • Incabloc shock protection
  • Unidirectional self-winding mechanism with ball bearing, weight segment made of heavy metal
  • Power reserve approx. 40 hours
  • Movement decorated, blued screws, weight segment with engraved Guinand logo
  • Regulator system ETACHRON and regulator corrector

Dial

  • Indices and hands coated with white luminescent colour
  • Matte black dial
  • Arabic numbers in DIN characters

Functions

  • Hours, minutes, subsidiary seconds
  • Chronograph with 30 min- and 12 hours counters and central second hand
  • Date display

Case

  • Case made of stainless steel, satin finish
  • Sapphire crystal glass, domed, anti-reflective on the interior
  • Screwed back with sapphire crystal glass
  • Screwed crown, double O-ring sealed with flank protection
  • Pilot bezel made of stainless steel, rotatable in two directions
  • Protected pushers
  • Pressure resistant up to 20 bar

Dimensions and Weight

  • Case diameter: 40,6 mm
  • Case thickness: 15,2 mm
  • Band lug width: 20 mm
  • Weight without strap: 92 g (solid back) / 90,5 g (sapphire back)

Straps 20 mm

Arizona

Leather Strap Arizona

Black Cowhide with alligator embossing, pin-clasp
folding-clasp available

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 190 mm / 7.5 inch 210 mm / 8.3 inch 170 mm / 6.7 inch

Colour variants

light brown
dark blue

Variants

Leather Strap Arizona Kontrast

cowhide with alligator embossing in black, cushioned, contrasting seam white, pin-clasp
folding-clasp available

Colour variant

dark brown

Montana

Leather Strap Montana

Armband Montana schwarz

Soft nappa leather in black, pin clasp
folding-clasp available

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 192 mm / 7.6 inch 211 mm / 8.3 inch 171 mm / 6.7 inch

Colour variant

Armband Montana Hellbraun
light brown

Variants

Leather Strap Montana Kontrast

Lederband Montana Kontrast Schwarz

soft nappa leather in black, cushioned, contrasting seam white, pin clasp
folding-clasp available

Colour variant

Leather Strap Montana Kontrast dark brown
dark brown

Kroko

Leather Strap Kroko

Leather Strap Kroko in black

Black alligator leather, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 204 mm / 8 inch 225 mm / 8.9 inch 177 mm / 7 inch

Colour variants

Leather Strap Kroko in dark brown
dark brown

Kalbsleder

Leather Strap Kalbsleder

Leather Strap Kalbsleder in black

Black calfskin fine grained, contrasting seam white, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 207 mm / 8.1 inch 219 mm / 8.6 inch 190 mm / 7.5 inch

Colour variant

Leather Strap Kalbsleder dark brown
dark brown

Rustikal

Leather Strap Rustikal

Leather Strap Rustikal black

Black cowhide with alligator embossing, cushioned, contrasting seam white, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 200 mm / 7.9 inch 217 mm / 8.5 inch 181 mm / 7.1 inch

Colour variant

Leather Strap Rustikal mid-brown
mid-brown

Cordovan

Leather Strap Cordovan

Leather Strap Cordovan black

Black cordovan, cushioned, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 189 mm / 7.4 inch 209 mm / 8.2 inch 166 mm / 6.5 inch

Colour variant

Cordovan cognac-colored
cognac-colored

Other Leather Straps

Leather Strap Antique

Leather Strap Antique

Pull up leather with laquered edging and colored stitch, pin-clasp
folding-clasp optionally

Leather Strap Outback

Leather Strap Outback

Worldwide first kangaroo nubuck leather-strap in serial production
Durable kangaroo nubuck leather strap, contrasting seam gray, pin-clasp
folding-clasp optionally

Leather Strap Outback Orange

Leather Strap Outback Orange

Worldwide first kangaroo nubuck leather-strap in serial production
Durable kangaroo nubuck leather strap, orange contrasting seam, pin-clasp 
folding-clasp optionally

Leather Strap Monza

Leather Strap Monza

 Dull finished calf leather with contrast stitching, BR-padded, pin-clasp

Leather Strap Rally

Leather Strap Rally

Soft cowhide leather with fine punching, pin-clasp

Leather Strap Vintage

Leather strap Vintage

Saddle leather with light contrast stitching, at tip of strap and at lug ends

Leather Strap Chronissimo

Leather Strap Chronissimo

Black cowhide, integrated in the case, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 213 mm / 8.4 inch 232 mm / 9.1 inch 192 mm / 7.6 inch

Leather Strap Ozean

Leather Strap Ozean

Black shark fish leather, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 192 mm / 7.6 inch 211 mm / 8.3 inch 172 mm / 6.8 inch

Leather Strap Pilot

Leather Strap Pilot

Black cowhide with "Bundeswehr" NSN coding

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 195 mm / 7.7 inch 221 mm / 8.7 inch 170 mm / 6.7 inch

Leather Strap Bali

Leather Strap Bali

White calfskin with alligator embossing, white seam, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 199 mm / 7.8 inch 211 mm / 8.3 inch 181 mm / 7.1 inch

Rubber Straps

Rubber Strap Kroko

Rubber Strap Kroko

Black rubber with alligator embossing, contrasting seam white, pin-clasp

Wrist size – strap length on Series 40

All wrist sizes are ca. dimensions, depending on your wearing habits
  middle hole outer hole inner hole
strap length incl. watch 195 mm / 7.7 inch 216 mm / 8.5 inch 173 mm / 6.8 inch

Rubber Strap Profil 1

Rubber Strap Profil 1

Black rubber strap, surface with zigzag engraving on the surface and a folding-clasp

Rubber Strap Glatt

Rubber Strap Glatt

Black rubber strap, smooth surface, incl. a laser engraved folding-clasp satinated or bead-blasted

Clasp overview

Pin Clasps

Stainless steel pin clasps

Pin Clasp polished
Pin Clasp satinated
Pin Clasp bead-blasted
Pin Clasp PVD coated

Folding Clasps

Folding clasps

Folding clasp, stainless steel polished
Folding clasp, stainless steel bead-blasted
Folding Clasp Rubber Strap bead-blasted
Folding Clasp Rubber Strap satinated