Duograph-Chrono
The model 40.50.04 Duograph-Chrono is a chronograph with an especially clearly arranged dial in the tradition of our series 40 Pilotchronographs and the legendary Chronosport 351 model - 2 stop counters together with the central stop second do enable stop time measurements up to 12 hours. We designed this watch without the permanently running small second - in favor of the size of the two stoppcounters.
The new model is optionally available with discreet matte black dial or distinctively white totalizers. Today, as in the past, it is known for its optimum readability, robust design and good wearability. In the cockpit and in everyday life. The light metal pilot bezel features bidirectional rotation and thus enables you to time short intervals without starting the chronograph. Protected pushers and a screwed crown with double O-ring seal enable reliable pressure resistance of 20 bar. Both the front and back feature scratch-proof sapphire crystal. The fact that the case design has barely changed in the past 50 years pretty much speaks for itself –– a true classic needs no improvement!
Duograph-Chrono RPanda
The model Duopgraph-Chrono RPanda is in the tradition of the 1960s sports chronographs with the distinctively color-coded totalizers from the rest of the dial. In contrast to the Panda optics (white dial with black totalizers) the readability of the time at the "Reverse Panda" dial of the Duograph Chrono RPanda is also optimal in low light conditions and darkness thanks to the black main dial and the indices coated with luminous color.
Model Overview Series 40 Duograph
40.50.04E
Functions
Hours, minutes, chronograph with 30 min- and 12 hours counters and central second hand, date- and day of the week display
Case
stainless steel, polished
Dial and Hands
Indices and hands coated with luminescent colour, matte black dial, arabic numbers
Specific features
2 stop-subdials, no subsidary seconds
40.50.04W
Functions
Hours, minutes, chronograph with 30 min- and 12 hours counters and central second hand, date- and day of the week display
Case
stainless steel, polished
Dial and Hands
Indices and hands coated with luminescent colour, matte black dial with white counters, arabic numbers
Specific features
2 stop-subdials, no subsidary seconds
40.50.04O
Functions
Hours, minutes, chronograph with 30 min- and 12 hours counters and central second hand, date- and day of the week display
Case
stainless steel, polished
Dial and Hands
Indices and hands coated with luminescent colour, black electroplated dial, stopcounters (h/m) in orange, stoppcounter second hand in white with tip in orange
Specific features
2 stop-subdials, no subsidary seconds
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
Functions
- Hours, minutes
- Chronograph with 30 min- and 12 hours counters and central second hand
- Date- and day of the week display
Case
- Case made of stainless steel, polished, bead-blasted or PVD coated
- Sapphire crystal glass, domed, anti-reflective on the interior
- Screwed back with sapphire crystal glass
- Screwed crown, double O-ring sealed
- Pilot bezel, rotatable in two directions
- Protected pushers
- Crown flank protection (40.50.04W)
- 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: 85 Gramm
Straps 20 mm
Arizona
Leather Strap Arizona
Black Cowhide with alligator embossing, pin-clasp
folding-clasp available
Wrist size – strap length on Series 40
| 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
Variants
Leather Strap Arizona Kontrast
cowhide with alligator embossing in black, cushioned, contrasting seam white, pin-clasp
folding-clasp available
Colour variant
Montana
Leather Strap Montana
Soft nappa leather in black, pin clasp
folding-clasp available
Wrist size – strap length on Series 40
| 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
Variants
Leather Strap Montana Kontrast
soft nappa leather in black, cushioned, contrasting seam white, pin clasp
folding-clasp available
Colour variant
Kroko
Leather Strap Kroko
Black alligator leather, pin-clasp
Wrist size – strap length on Series 40
| 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
Kalbsleder
Leather Strap Kalbsleder
Black calfskin fine grained, contrasting seam white, pin-clasp
Wrist size – strap length on Series 40
| 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
Rustikal
Leather Strap Rustikal
Black cowhide with alligator embossing, cushioned, contrasting seam white, pin-clasp
Wrist size – strap length on Series 40
| 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
Cordovan
Leather Strap Cordovan
Black cordovan, cushioned, pin-clasp
Wrist size – strap length on Series 40
| 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
Other Leather Straps
Leather Strap Antique
Pull up leather with laquered edging and colored stitch, pin-clasp
folding-clasp optionally
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
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
Dull finished calf leather with contrast stitching, BR-padded, pin-clasp
Leather Strap Rally
Soft cowhide leather with fine punching, pin-clasp
Leather Strap Vintage
Saddle leather with light contrast stitching, at tip of strap and at lug ends
Leather Strap Chronissimo
Black cowhide, integrated in the case, pin-clasp
Wrist size – strap length on Series 40
| 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
Black shark fish leather, pin-clasp
Wrist size – strap length on Series 40
| 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
Black cowhide with "Bundeswehr" NSN coding
Wrist size – strap length on Series 40
| 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
White calfskin with alligator embossing, white seam, pin-clasp
Wrist size – strap length on Series 40
| 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
Black rubber with alligator embossing, contrasting seam white, pin-clasp
Wrist size – strap length on Series 40
| 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
Black rubber strap, surface with zigzag engraving on the surface and a folding-clasp
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
Folding Clasps
Folding clasps
