Sinn 155 Revolution Limited Edition 150 Pieces

Used mint condition Sinn 155 Revolution limited edition complete with box and papers with three additional nato straps. In tandem with the specialist watch magazine Revolution, Sinn produced a limited edition of just 150 pieces edition of the model 155 Revolution, with its historically inspired design. This is number 105 of 150

The ‘wristwatch with double stopwatch’ (as it was originally known by the Bundeswehr – the German armed forces – during the 1960s), which was sold in very limited quantities during the 1980s and early 1990s, is now one of the most sought-after collector’s watches in our company.

Back then, the company purchased phased-out watches from the inventories of the Bundeswehr (Heuer-Leonidas SA 1550 SG, shortened to Heuer 1550 SG) and sold these after reconditioning with, inter alia, added SINN lettering on the dial under the label ‘Bundeswehr Chronograph for Pilots’ as Model 155 Bw. These impressive pilot watches with flyback function were fitted with a Valjoux 230 handwound chronograph movement and a pilot’s bezel.

The design of the 155 Revolution is consistent with this historic model: the beadblasted case with a diameter of 43 mm, the convex acrylic glass, the grey pilot’s bezel manufactured from anodised aluminium, and the ivory coloured luminous gauge on the dial and hands, are distinctly reminiscent of the pilot- chronograph tradition. Even with the black, leather underlay strap with the stamped supply number, we have stayed true to the original model. Moreover, the 155 Revolution is available with a beige textile strap, which colour-blends perfectly with the ivory luminous paint.

As a symbol of the cooperation with the specialist watch-magazine, Revolution, the matt-black dial is adorned with a discreet, shiny-black ‘Revolution star’. In selecting the watch mechanism, we placed our trust in the modern, automatic calibre SW 510 from the Swiss manufacturer Sellita. This enables a horizontal bicompax division and central stopwatch-second display, true to the historic model, with the seconds display at 9 o’clock and the stopwatch minute display at 3 o’clock.

Mechanical Movement
SW 510
Self-winding mechanism
27 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309

Watch Case
Stainless steel, bead-blasted
Shock-proof acrylic glass on front
Stainless steel back, screw-fastened
Meet the technical requirements
for waterproofness, as set out in
standard DIN 8310
Pressure-resistant up to 10 bar
Resistant to low pressure
Band lug width 20 mm
Case diameter 43 mm

Functions
Hours, minutes, subsidiary seconds
Chronograph
Pilot’s bezel with minute scale

Dimensions and Weight
Case diameter: 43 mm
Band lug width: 20 mm
Case thickness: 14,75 mm
Weight without strap: 80 gramme

Dial and Hands
Matte black dial
'Revolution star' coated with black luminescent colour
Numbers coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour