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Sinn in Space: The 140/142 Chronographs

Sinn in Space: The 140/142 Chronographs

Amongst Sinn enthusiasts, the model 140/142 Chronograph holds a special glory and is part of an exclusive club of important wristwatches.  That club, obviously, is watches worn into space.No matter how profound you dive or how high you move, there is something innately better when in regards than watches that have broken the terrestrial securities and ventured past our atmosphere strapped to the wrist of an astronaut. 

In 1985, German astronaut Reinhard Furrer purchased a black PVD 140S and wore it into space as part of the Spacelab D1 mission.  This mission became historically important for a couple of reasons – the first is that it was the last fruitful mission of the Space Shuttle Challenger, which was tragically obliterated on its next mission several months later.  The second – and a lot happier – reason is that this marked the first occasion when that a automatic Chronograph was worn by an astronaut on a space mission.

Except it wasn’t.

Sinn got no small amount of credit (and likely, a lot of sales) for holding that title – although in 2007 it came to light that Commander William Pogue wore a non-approved Seiko 6139 Chronograph during the Skylab 4 mission 11 years earlier.  Regardless of this fact, the Sinn 140/142 remains perhaps the best of the “space watches,” and its collectability never wavered.

This is also because of the fact that the Sinn’s time in space wasn’t restricted to a solitary mission.  Sinn 140/142s were also worn on Space Station Mir in 1992, and during Spacelab D2 aboard the Colombia in 1993, altogether instances operating flawlessly under the harshest conditions known to man.  Without question, Sinn created quite a watch, and it is as yet lauded today.

Mechanically speaking, the Sinn model 142 uses a large steel case got done with either a clean or a matte black PVD coating.  The movement is the venerable Lemania 5100, and powers a day/date register with a central minutes chronograph, as well as registers for subsidiary seconds, 12 and 24-Hour counters.  The dial features an internally rotating bezel, which is operated by the crown at 10.

The 142 imagined is particularly fascinating as it comes from the personal assortment of Helmut Sinn, originally purchased from him in 2012. This piece was as of late sold by analog/move and it is presently headed to its next proprietor in Great Britain.

editor’s note: it has been drawn out into the open that the Sinn worn by Reinhard Furrer on the Spacelab mission may have in fact been a Sinn 141 with a Lemania 5012 movement. Here is a top to bottom article attempting to prove it is a 141.

Continuing on the achievement of the too collectable vintage pieces, Sinn has as of late released the model 140A , a spiritual replacement to the original, fitted with their new SZ01 automatic movement.  Based on the vaunted Valjoux 7750 movement, the SZ01 features modifications intended to emulate the appearance and functionality of the original Lemaniz 5100, packed with a central hour long stopwatch hand.  The plan of the new 140 A takes its visual signs from the classic examples, complete with cleaned/satin steel case, and the same layout for the crown and pushers – it even features a secondary crown at 10 to operate the internally rotating bezel.  Updated components, for example, a sapphire crystal modernize the piece for genuine instrument watch usage.  The name of the game with this piece is enhancing functionality while embracing heritage.  Offered in a restricted run of 500 pieces, there is no doubt that this is an instant classic.

by James Lamdin

James Lamdin is a freelance automotive and watch journalist based in New York City.  He is also the Founder of  , an online store for a curated determination of exceptional vintage wristwatches.