The German horology brand has released a follow up to one of their most highly regarded dive watches. This time around they have given it a lively blue dial and crafted the timepiece of a tried and tested premium steel alloy, known for being used to construct submarines. Introducing the latest “Sinn U1 B” model that added the “B” suffix for “blau”, which is German for “blue”.
The 44mm case is made of a bead-blasted German “submarine” steel which has a more matte gray hue, instead of the standard shin found on stainless-steel. This is the same proprietary alloy used by Nordseewerke Emden, which was a German shipbuilding company founded in 1903 that defunct in 2010, but built many German submarines during its heyday. This allow may weigh a bit more than standard steel, but is anti-magnetic and has an enhanced corrosion resistance.
This German naval manufacturer even built a cruise liner named “Sea Venture”, later on renamed “Pacific Princess”, which served as the film location of the historic ABC TV series “The Love Boat”.
Its screw-on case back and setting-crown have also been crafted from the same “submarine” steel used on the main case. The setting-crown has also been positioned at 4 o’clock to prevent pressure on the back of the hand. All topped by a sapphire crystal with anti-reflective coating on both sides, which combined with the aforementioned “submarine” quality alloy and crowns position allow this watch to have an impressive water-resistance able of reaching up to 1000 meters (3280 feet).
Mounted to the case is a uni-directional steel, although unlike the case the bezel has undergone a full Tegiment-treated, which is an indurate process developed by Sinn back in 2003 that improves scratch resistance by hardening the surface of the metal. A unique feature of this ratcheted bezel is Sinn’s robust alternative construction secured by small screws, instead of the conventional snap-in bezel that can easily be knocked off.
Time is exhibited on a blue electroplated dial with small thick white minute index markers, followed by big block shaped hour index markers, which are slightly bigger for every 15-minute increment at the: 3, 6, 9 and 12 o’clock positions.
It also features the U1’s signature block-shaped central hands, which Sinn has regularly applied for this model line. The inscription “U1”, “AUTOMATIK” and “Made in Germany” can be seen printed in white on the lower-half of the dial. The central hands, hour index markers and a bezel key mark have all been coated with a luminescent coating, for an enhanced legibility. There is also a black date aperture at the 3 o’clock position.
Sinn U1 B
This “Sinn U1 B” (Ref#: 1010.01B) is powered by a self-winding mechanical movement, caliber Sellita SW200 with 26 jewels and 28,800 Vph. This movement was the main competitor to the ETA 2824-2, but since ETA movements began to exclusively supply the Swatch group, most brands have opted for this equally reliable Sellita caliber. Power reserve on this watch can last up to 38 hours, when fully wound.
Mounted to this watch is blue rubber strap, secure to the wrist by a “submarine” steel pin buckle, matching the case. For more up to date information visit the official Sinn website here.
MSRP: $2,080.00 USD
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