# What the Seris Small Second is and where it fits Union Glashütte has added a compact, more formal member to its Seris family. The Seris Small Second keeps the collection's smaller case ethos and dressy presentation but changes the seconds display and movement to deliver longer autonomy between windings.
# Design and dimensions The case measures 36mm across, 42.67mm lug-to-lug, and 9.88mm thick. It's stainless steel with a domed sapphire crystal treated with anti-reflective coating on both sides. The caseback is a screw-down sapphire crystal that reveals the movement. Water resistance is rated at 50 metres. Those dimensions and finishes position the watch clearly as a dress piece intended for everyday wear rather than a sports model.
# Dial layout and variants Hours and minutes are displayed centrally. A small-seconds subdial sits at 6 o'clock and shares that zone with a date window framed in chrome or gold-coloured trim depending on the version. Polished indexes are used across the range.
There are three launch configurations:
- Deep blue with a sunray finish on a stainless-steel bracelet.
- Champagne with an embossed sunburst pattern on a dark brown calfskin strap.
- Matte white with rose-gold-coloured accents on a taupe calfskin strap.
All straps and the bracelet use a double-folding clasp with two push-buttons.
# Movement and technical details Second uses the UNG-28.S1, described as an evolution of the ETA 2892 fitted with a small-seconds module. Key technical points:
- Automatic winding
- 25,200 vibrations per hour (3.5 Hz)
- Silicon hairspring for improved magnetic resistance and stability
- Around 60 hours power reserve
This movement takes the 2892 platform and extends its running time while adding a silicon balance spring and repackaging the seconds as a small-subdial at 6 o'clock.
# Pricing and positioning Retail prices at launch are EUR 2,350 for the blue-bracelet variant and EUR 2,200 for each leather-strap variant. That places the Seris Small Second below the Seris Date models, which retail at roughly EUR 2,600, and frames this new model as a more affordable dress-watch option within the collection.
# How it compares to recent Union Glashütte releases Union's recent launches have leaned toward chronographs, including the Averin and Belisar chronographs. The Seris Small Second is deliberately different: it emphasizes compact size, dress styling, and a movement revised for longer autonomy rather than chronograph functions.
# Who this is for Second suits buyers seeking a smaller, dress-style mechanical watch with modern movement improvements—longer power reserve and a silicon hairspring—at a mid-tier price point. The three dial-and-strap combos cover classic dress-watch looks while the mirrored caseback allows buyers to see the movement details.
# Quick technical snapshot
- Case: 36 x 42.67 x 9.88 mm, 316L stainless steel
- Water resistance: 50 m
- Movement: UNG-28.S1 (ETA 2892 evolution), 25,200 vph, ~60 h reserve, silicon hairspring
- Launch prices: EUR 2,350 (steel bracelet), EUR 2,200 (leather straps)
For full reference and ordering information, the manufacturer's website is listed as union-glashuette.com.