Sinn has just announced a raft of new releases — and this time around, the Frankfurt-based maker of military-and-tool watches is doing things a little differently. Yes, there are the black dials and tegimented cases upon which the brand has built its name. But there’s also something else, something (dare we say it) dressier on offer – the 1739 collection.

Before we get there though, let’s take a tour of duty through some more familiar families — starting with the instrument line. The 556, a classic modern aviation-inspired watch, with a 38.5mm case and a respectable 200 metres of water resistance got an added flash of colour, in the form of a red second hand on both the Arabic dial (556 A RS) and the non-Arabic dial (556 I RS). We’ve seen red hands making their way across Sinn core models in recent times, and they’re a nice addition to these everyday heroes.

556 A RS
556 I RS

Time to move into deeper waters. There’s a new family of deep divers on offer — the U50. Taking the familiar form factor of the pucklike, crown-at-four case and that super stark, blocky handset that dive watch fans know and love, Sinn has added a 500m rated case, which offers a less intense alternative to the 1000-metre-rated U1 line and the 2000 metre-rated U2 lines. Because really, the chances are solid that you don’t *need* a watch that can go down that deep. And, to match shallower depth rating, we get smaller dimensions, 41mm across and 11.15mm tall, with 20mm lug width. Don’t worry though, all the other Sinn good stuff is there, like that tegimented steel. Out of the gate we get three versions, the classic configuration of steel on bracelet is the U50, all-black on red rubber is U50 S, and U50 SDR occupies a middle ground with its steel case and black tegimented bezel.

U50, U50 S and U50 SDR

Finally, we get to the 1739 collection. No matter how hard you look, you won’t find any tegimented steel or military-style on display here. Instead, we’re treated to an array of exceptionally classic timepieces. Two hands, no date or running seconds to mar the purity of the lines, 39mm steel cases and a range of dials. The reference 1739 St I S comes equipped with a black starburst, 1739 St I 4N is a silver starburst with golden hands and baton markers. The thin 9.1mm cases are polished, rated to 100 metres and have a Sellita Works SW300-1 running inside.

1739 St I S
1739 St I 4N

The last watch of this trio is perhaps the most interesting, it’s the 1739 Heimat, with a rhodium dial with Roman numerals in the outer chapter ring and a relief pattern in a harlequin-like diamond pattern. It’s a dial inspired by Frankfurt’s cider glasses, which are one of those local cultural touchpoints. Fun fact, it’s not just watch dials that have been inspired by hard cider, there’s a 30-story tower in Frankfurt called the Westhafen tower that also bears a striking resemblance to a refreshing glass of crisp cider. Allusions to alcohol aside it’s a dynamic dial and makes for an interesting dress option and a refreshing look at the lesser-seen side of Sinn.

1739 Heimat
556 A RS and I RS

Technical Specifications

Movement

Self-winding Sellita Works SW200-1, hours, minutes, seconds, date display

Case

38.5mm stainless-steel, water resistant to 200 metres

Dial

Matte black with numbers, indices and hour and minute hands coated with luminescent colour, Arabic dial (556 A RS) and non Arabic dial (556 I RS)

Strap

Stainless steel

U50

Technical Specifications

Movement

Self-winding Sellita Works SW300-1, hours, minutes, seconds, date display, Diver’s bezel with minute ratcheting and luminous key mark

Case

41mm stainless-steel (U50), black tegimented steel (U50 S), steel case with black tegimented bezel (U50 SDR), water resistant to 500 metres

Strap

Stainless steel on the U50 and U50 SDR, red rubber strap on the U50 S

1739

Technical Specifications

Movement

Self-winding Sellita Works SW300-1, hours, minutes

Case

39mm Stainless-steel, water resistant to 100 metres

Dial

Electroplated black dial with sunburst decoration (1739 St I S)
Silver electroplated dial with sunburst decoration (1739 St I 4N)
Hands and relief dial in silver-white rhodium (1739 Heimat)